Default for CHM103 The default category for questions shared in context 'CHM103'. Fill in the Blank (FBQs) FBQ1 ML-1T-2 is the dimensional formula for __________________ . *pressure* 1.0000000 0.0000000 FBQ2 Logarithmic functions are __________________ quantities and hence have no units. *dimensionless* 1.0000000 0.0000000 0.0000000 FBQ3 __________________ are often used in weighing substances. *Balance* 1.0000000 0.0000000 0.0000000 FBQ4 It is always advisable to __________________ data for effective management. *Tabulate* 1.0000000 0.0000000 0.0000000 FBQ5 In application, only __________________ gases obey Boyle’s and Charles laws. *Ideal* 1.0000000 0.0000000 0.0000000 FBQ6 At 0.2oC, Nitrogen gas in a 0.05m3 container has a pressure of 5.065 x 105Pa, the number of moles is __________________ *11.15* 1.0000000 0.0000000 0.0000000 FBQ7 If at 0.2oC, Nitrogen gas in a 0.05m3 container has a pressure of 5.065 x 105Pa, its mass will be __________________ *312.2g* 1.0000000 0.0000000 0.0000000 FBQ8 In line with Dalton’s law, in a gaseous mixture, the pressure of a gas is the product of its __________________ and total pressure. *Mole function* 1.0000000 0.0000000 0.0000000 FBQ9 __________________ is the number of molecules of a gas in a unit volume. *Number density* 1.0000000 0.0000000 0.0000000 FBQ10 At any given instant, the molecules in a sample of a gas have a range of __________________ *Velocities* 1.0000000 0.0000000 0.0000000 FBQ11 In __________________ equation, the pressure is represented as power series of VM. *Virial* 1.0000000 0.0000000 0.0000000 FBQ13 The critical volume is inversely proportional to critical __________________ *density* 1.0000000 0.0000000 0.0000000 FBQ14 If the temperature of the gas is above its inversion temperature, Joule Thompson expansion results in __________________ *heating* 1.0000000 0.0000000 0.0000000 FBQ15 Linde’s method of liquefaction is __________________ efficient than Claude’s method. *Less* 1.0000000 0.0000000 0.0000000 FBQ16 __________________ polarity is a temporary dipolar arrangement of charge. *Instantaneous* 1.0000000 0.0000000 0.0000000 FBQ17 A lattice is a regular __________________ arrangement of points in space. *periodic* 1.0000000 0.0000000 0.0000000 FBQ18 Every __________________ is identical in orientation, arrangement and composition. *basis* 1.0000000 0.0000000 0.0000000 FBQ19 Metallic solids can be seen as having __________________ bonds between adjacent atoms. *covalent* 1.0000000 0.0000000 0.0000000 FBQ20 The bond model is the same as the __________________ bond approach. *Valence* 1.0000000 0.0000000 0.0000000 FBQ21 The bcc crystal can be defined in terms of two __________________ positions in the cell. *unique* 1.0000000 0.0000000 0.0000000 FBQ22 When a germanium is doped with gallium, the gallium (impurity) is called the __________________ *Acceptor* 1.0000000 0.0000000 0.0000000 FBQ23 Due to strong hydrogen bonding, water has __________________ vapour pressure than benzene. *Lower* 1.0000000 *Lesser* 0.0000000 0.0000000 FBQ24 The successive twist in structure makes the __________________ liquid crystals coloured. *cholesteric* 1.0000000 0.0000000 0.0000000 FBQ25 __________________ rule is applicable to liquids in which there is no hydrogen bonding. *Trouton’s* 1.0000000 0.0000000 0.0000000 FBQ26 __________________ is the number of moles of solute present in one kilogram of the solvent. *Molality* 1.0000000 0.0000000 0.0000000 FBQ27 The solubility of a gas in a liquid is measured in terms of absorption coefficient or __________________ coefficient. *Bunsen* 1.0000000 0.0000000 0.0000000 FBQ28 The concentration of gases that pollute the atmosphere are expressed in __________________ *Parts per million* 1.0000000 *ppm* 1.0000000 0.0000000 FBQ29 __________________ , ideal solutions are those in which volume change is zero. *Thermodynamically* 1.0000000 0.0000000 0.0000000 FBQ30 A solution is said to show __________________ deviation from Raoult’s law, when the vapour pressure of the solution is lower than that of an ideal solution of the same concentration. *negative* 1.0000000 0.0000000 0.0000000 FBQ31 According to __________________ , the mole fraction of a more volatile component in an ideal solution is more in the vapour phase than in the liquid phase. *Konownloff* 1.0000000 0.0000000 0.0000000 FBQ32 Fractional distillation is a __________________ process *Continuous* 1.0000000 0.0000000 0.0000000 FBQ33 Another name for critical solution temperature is __________________ temperature. *Consolute* 1.0000000 0.0000000 0.0000000 FBQ34 Differential __________________ is employed in the static method of lowering vapour pressure. *Manometer* 1.0000000 0.0000000 0.0000000 FBQ35 In __________________ , Gibbs deduced a simple relationship among the number of phases in equilibrium. *1876* 1.0000000 0.0000000 0.0000000 FBQ12 The volume of gas that liquefies at critical pressure and temperature is the critical volume. True or False? *False* 1.0000000 0.0000000 0.0000000 Multiple Choice Questions (MCQs) MCQ1 ML2T-2 is the dimensional formula for _____. Work 1.0000000 Pressure 0.0000000 Work and pressure 0.0000000 None of the options 0.0000000 MCQ2 Which of this/these representations of force is/are correct? I 50N II 50n III 50 Newton IV 50 newton. I,III 0.0000000 I,IV 1.0000000 II,III 0.0000000 I,II,III.IV 0.0000000 MCQ3 The SI unit factor of 2.5km in M/KM is ________. 1/1000 0.0000000 1/100 0.0000000 1000/1 1.0000000 100/1 0.0000000 MCQ4 Steam bath is employed in which of the separation methods? sublimation 0.0000000 crystallisation 1.0000000 Precipitation 0.0000000 filtration 0.0000000 MCQ5 Which of the following is false about gases? They expand at high temperature 0.0000000 They contract at low temperature 0.0000000 They expand indefinitely above certain critical temperature 1.0000000 They compress indefinitely above certain critical temperature 0.0000000 MCQ6 Which of these have definite volume? Solids 0.0000000 Solids and liquids 1.0000000 Liquids 0.0000000 Liquid and gas 0.0000000 MCQ7 Which of the following is false? Gas pressure can vary inversely with its volume 0.0000000 The pressure can vary directly with its temperature 0.0000000 The combined gas laws can be derived 0.0000000 Ideals gases do not obey laws exactly for all conditions of temperature and pressure 1.0000000 MCQ8 If a fixed mass of gas is transferred from a 50cm3 container to a 150cm3 container, then its pressure will be Tripled 0.0000000 One third 1.0000000 constant 0.0000000 None of the options 0.0000000 MCQ9 Charles law is not linked with which of the following? P∞T 0.0000000 V∞T 0.0000000 Absolute temperature 0.0000000 Real gas 1.0000000 MCQ10 One of the following has no contribution to the kinetic theory? James Clark 0.0000000 James Bernoulli 1.0000000 August Krong 0.0000000 Ludwig Boltman 0.0000000 MCQ11 Gaseous diffusion method can be used to separate _________. Isotopes 1.0000000 Precipitate 0.0000000 Sublimates 0.0000000 Volumes 0.0000000 MCQ12 Considering CO, HCl and NH3 at 400K, which conclusion is true regarding their average kinetic energies? HCl˃CO˃NH3 0.0000000 CO˃HCl˃ NH3 0.0000000 NH3 = CO = HCl 1.0000000 NH3 ˃ CO˃HCl 0.0000000 MCQ13 Gases behave ideally at ______ I Low pressure II High pressure III High temperature IV Low temperature. I and IV 0.0000000 II and IV 0.0000000 I and III 1.0000000 II and III 0.0000000 MCQ14 All the following are true of the density of a liquid except __________. Increases with temperature 1.0000000 Decreases with temperature 0.0000000 Its equal with that of vapour at critical temperature 0.0000000 Its mean value can be plotted against temperature 0.0000000 MCQ15 One of these is not a refrigerant. Ammonia 0.0000000 Dichloromethane 1.0000000 Freon 0.0000000 dichlorodifluoromethane 0.0000000 MCQ16 Vander waals forces includes the following except _______. Dipole-dipole interactions 0.0000000 Induced dipole interactions 1.0000000 Dispersion forces 0.0000000 London forces 0.0000000 MCQ17 The under-listed can be linked to dispersion interactions except _________. Low liquefaction temperature 0.0000000 Liquefaction of non polar molecules like methane 0.0000000 Liquefaction of most polar molecules 1.0000000 Liquefaction of noble gases 0.0000000 MCQ18 The effect of attractive and repulsive interactions on the energy of a system can be understood by plotting _______ against __________. r,v 0.0000000 v,r 1.0000000 m,v 0.0000000 v,m 0.0000000 MCQ19 The basic shape of a unit cell is described by the _________. All of the options 0.0000000 Parallel piped 1.0000000 Cell edge lengths 0.0000000 Angles between axes 0.0000000 MCQ20 From the relationships among the axis angles and the edge length, there are _____ crystal systems only. 5 0.0000000 6 0.0000000 7 1.0000000 8 0.0000000 MCQ21 The density of crystal depends on _____. I Mass of atoms II Structure of atoms III Number of atoms IV Volume of the unit cell. I,II,III 0.0000000 I,IV 0.0000000 I,III,IV 1.0000000 II,III,IV 0.0000000 MCQ22 NaCl is composed of ______ interpenetrating _____ lattices. Two, bcc 0.0000000 Four, fcc 0.0000000 Two, fcc 1.0000000 Four, bcc 0.0000000 MCQ23 Polonium metal is an example of ___ structure. Single cubic 1.0000000 Face-centered cubic 0.0000000 Body-centered cubic 0.0000000 Hexagonal closed packed 0.0000000 MCQ24 Which of the following is not inversely related to temperature? Semi-conductor resistance 0.0000000 Surface tension 0.0000000 Viscosity 0.0000000 Conductivity of n-type semi-conductor 1.0000000 MCQ25 Viscosity of liquids depends on the following except _________. Temperature 0.0000000 Molecular arrangement 0.0000000 Types of bond 0.0000000 Surface tension 1.0000000 MCQ26 Which of these has the least vapour pressure? Mercury 1.0000000 Ethanol 0.0000000 Water 0.0000000 Benzene 0.0000000 MCQ27 Zinc amalgam is a solution of ______ Solid-solid 0.0000000 Solid-liquid 1.0000000 Liquid-liquid 0.0000000 Solid-gas 0.0000000 MCQ28 The solubility of gas in liquid is directly related to ____. Temperature 0.0000000 Pressure 1.0000000 Nature of gas or solvent 0.0000000 Henry’s law 0.0000000 MCQ29 The ratio of the number of moles of a solute to the total number of moles of the solute and the solvent in solution is ____. Normality 0.0000000 Mole fraction 1.0000000 Molality 0.0000000 Percentage mole 0.0000000 MCQ30 According to Roult’s, when a non volatile solute is dissolved in a solvent, the vapor pressure of the solute_________. Decreases 0.0000000 Increases 0.0000000 Is the same with the solvent 0.0000000 None of the options 1.0000000 MCQ31 If x, y, and z are solutions with high vapor, low vapor and atmospheric pressure respectively, if equal amount of heat is supplied to x, y and z, at which order will they boil? z, y, x 0.0000000 Z, x, y 0.0000000 X, z, y 1.0000000 X, z, y 0.0000000 MCQ32 Which of these processes is not found in fractional distillation? Condensation 0.0000000 Vaporization 0.0000000 Re-fractionating 1.0000000 Re-vaporization 0.0000000 MCQ33 Which of these liquid pairs shows both the lower and upper critical solution temperature? Water and nicotine 1.0000000 Water and phenol 0.0000000 Water and diethylamine 0.0000000 Aniline and hexane 0.0000000 MCQ34 A system of totally immiscible liquids has/have how many phase{s}? One 0.0000000 Two 0.0000000 Several 0.0000000 Three 1.0000000 MCQ35 Phase equilibria containing ice, water and its vapour is a _____ component system. Three 0.0000000 One 1.0000000 Two 0.0000000 Four 0.0000000 23/11/2019, 11:41 - Seniorman: Thanks 23/11/2019, 11:41 - Seniorman: Phy102 Cit202? 23/11/2019, 11:42 - New TMA Agent Martins: 23/11/2019, 11:42 - New TMA Agent Martins: 23/11/2019, 11:42 - New TMA Agent Martins: 23/11/2019, 11:42 - New TMA Agent Martins: 23/11/2019, 11:42 - New TMA Agent Martins: 23/11/2019, 11:42 - New TMA Agent Martins: 23/11/2019, 11:42 - New TMA Agent Martins: 23/11/2019, 11:42 - New TMA Agent Martins: 23/11/2019, 11:51 - Seniorman: This 11:30 is wonderful 23/11/2019, 11:51 - Seniorman: Thanks 23/11/2019, 12:11 - New TMA Agent Martins: Abi 23/11/2019, 12:11 - New TMA Agent Martins: Happy weekend 23/11/2019, 12:11 - New TMA Agent Martins: 2:30 may not be same 23/11/2019, 12:16 - Seniorman: Ye 23/11/2019, 12:17 - Seniorman: All the best my brother 23/11/2019, 14:53 - New TMA Agent Martins: Default for CIT208 The default category for questions shared in context 'CIT208'. Fill in the Blank (FBQs) FBQ1 The specific technologies of information technology are computer and data ____________ *Communication* 1.0000000 0.0000000 FBQ2 The study of information-systems originated as a sub-discipline of ____________ science, in an attempt to understand and rationalize the management of technology within an organisation *Computer* 1.0000000 0.0000000 0.0000000 FBQ3 Generally, data is tagged by the use of the ____________ code *XML* 1.0000000 0.0000000 FBQ4 The SQL SELECT statement is used to extract ____________ from the database *Data* 1.0000000 0.0000000 FBQ5 Database constraints are defined over a ____________ *Schema* 1.0000000 0.0000000 FBQ6 The acronym SQL represents ____________ Query Language *Structured* 1.0000000 0.0000000 FBQ7 SQL is used to access and manipulate a ____________ *Database* 1.0000000 0.0000000 FBQ8 MIS stands for____________ Information Systems *Management* 1.0000000 0.0000000 FBQ9 A Database ____________ normally contains one or more tables *Table* 1.0000000 0.0000000 FBQ10 A Decide ____________ Is used to view the structure of a database table *Clause* 1.0000000 0.0000000 FBQ11 Sharing data is one of the two most common forms of interaction in a ____________ model *Conceptual* 1.0000000 0.0000000 FBQ12 The relational algebra is a non-procedure ____________ language *Query* 1.0000000 0.0000000 FBQ13 A ____________ value is a value that is unavailable *null* 1.0000000 0.0000000 FBQ14 Entities are simply described as ____________ *Concepts* 1.0000000 0.0000000 FBQ15 IS stands for____________ System *Information * 1.0000000 0.0000000 FBQ16 DDL is____________ Definition Language *Data* 1.0000000 0.0000000 0.0000000 FBQ17 SQL statements are basically divided into ____________ *Four* 1.0000000 *4* 1.0000000 FBQ18 The ____________ model is explicitly chosen to be independent of implementation Details *Conceptual* 1.0000000 0.0000000 FBQ19 The changes made by the DML statements are managed by ____________ control *Transaction* 1.0000000 0.0000000 0.0000000 FBQ20 The ____________ type specifies what type of data the column can hold *Data* 1.0000000 0.0000000 FBQ21 The clause is used to ____________ records *filter* 1.0000000 0.0000000 FBQ22 With the WHERE clause, the LIKE operator Searches for a ____________ *Pattern* 1.0000000 0.0000000 FBQ23 The basic storage structure of a Relational Database Model is a ____________ *Table* 1.0000000 0.0000000 FBQ24 Alternative Names can be ascribed to database objects by using ____________ *Synonyms* 1.0000000 0.0000000 FBQ25 A ____________ model represents 'concepts' and relationships between them *Conceptual* 1.0000000 0.0000000 0.0000000 FBQ26 A ____________ is an association between two or more entities *Relationship* 1.0000000 0.0000000 0.0000000 FBQ27 XML documents are made up of ____________ units called entities *Storage* 1.0000000 0.0000000 0.0000000 FBQ28 Database constraints can be defined over a ____________ *Schema* 1.0000000 0.0000000 0.0000000 FBQ29 The ____________ statement is used to remove records and rows in a table *Delete* 1.0000000 0.0000000 0.0000000 FBQ30 The AND --- operator displays a ____________ if both the first condition and the second condition is true *Record* 1.0000000 0.0000000 0.0000000 FBQ31 Generally, a transaction ____________ system records and tracks an organisation's operations *Processing* 1.0000000 0.0000000 0.0000000 FBQ32 A decomposition of a relation schema R consists of Replacing the ____________ schema *Relation* 1.0000000 0.0000000 0.0000000 FBQ33 ____________ and track an organization's transactions such as sales transactions *Record* 1.0000000 0.0000000 0.0000000 FBQ34 A computer database relies upon software to organize the ____________ of data. *Storage* 1.0000000 0.0000000 0.0000000 FBQ35 Give or remove access rights to both a ____________ and the structures *Database* 1.0000000 0.0000000 0.0000000 Multiple Choice Questions (MCQs) MCQ1 Information Systems used to analyse operational activities are called_____ Tactical systems 0.0000000 Strategic systems 0.0000000 Management information systems 1.0000000 Support systems 0.0000000 MCQ2 SQL SELECT statement is used ________ To incorporate data into a database 0.0000000 To extrapolate data 0.0000000 To describe data in a database 0.0000000 To extract data from the database 1.0000000 MCQ3 ____ best describes the transaction processing system. Designed to help mid-level and senior managers make those difficult decisions about which not every relevant parameter is known 0.0000000 Provide mid-level and senior managers with periodic often summarized reports that help them assess performance (e.g. a particular region's sales performance in a given time period) and make appropriate decisions based on that information 0.0000000 Record and track an organisation's transactions such as sales transactions or inventory items from the moment each is first created until it leaves the system 1.0000000 Built by modeling into the computer the thought processes and decision-making heuristics of a recognized expert in a particular field 0.0000000 MCQ4 The UDDI is used--------------- For listing the services that are available 1.0000000 For listing what systems are available 0.0000000 For listing what services 0.0000000 For describing what services are available 0.0000000 MCQ5 The most common view of an information system is one of ------ Input-Storage-Output 0.0000000 Input-Process-Output 1.0000000 Input-Output-Process 0.0000000 Input-Process-Storage 0.0000000 MCQ6 Management reporting system is commonly referred to as ------- MIS 1.0000000 Management interchange system 0.0000000 Management advocate system 0.0000000 Management system 0.0000000 MCQ7 The SQL statement ___ is used to modify data in a database Save 0.0000000 Insert 0.0000000 Update 1.0000000 Save As 0.0000000 MCQ8 The SQL ---- statement is used to extract data from a database EXTRACT 0.0000000 SELECT 1.0000000 GET 0.0000000 OPEN 0.0000000 MCQ9 What does SQL stand for ? Structured Question Language 0.0000000 Structured Query Language 1.0000000 Strong Question Language 0.0000000 Strong Question Land 0.0000000 MCQ10 A type of decision support system that is geared primarily toward high-level senior managers is----- The management information system (MIS) 0.0000000 The Executive Information System (EIS) 1.0000000 The Expert System (ES) 0.0000000 The Transaction Processing System (TPS) 0.0000000 MCQ11 Which system helps to arrive at a decision? ES 1.0000000 TPS 0.0000000 MIS 0.0000000 DSS 0.0000000 MCQ12 The Ordinarily, database constraints are defined over a ___ Postgre 0.0000000 Queue 0.0000000 Schema 1.0000000 Row 0.0000000 MCQ13 The relational ------- is a non-procedure query language Protocol 0.0000000 File 0.0000000 Table 0.0000000 Algebra 1.0000000 MCQ14 Can SQL statements be entered on one or many lines? NO 0.0000000 YES 1.0000000 NOT SURE 0.0000000 None of the options 0.0000000 MCQ15 SQL --- are not case sensitive Cases 0.0000000 case inclusive 0.0000000 statements 1.0000000 sensitivities 0.0000000 MCQ16 Expert system can make decision? TRUE 0.0000000 FALSE 1.0000000 Partly 0.0000000 All of the options 0.0000000 MCQ17 A value that is unavailable is described a -------- Set 0.0000000 Float 0.0000000 Matrix 0.0000000 Null 1.0000000 MCQ18 In information systems, the ----- is used to make Projection, selection and joining DECIDE clause 0.0000000 SQL statement 0.0000000 WHERE clause 0.0000000 SELECT statement 1.0000000 MCQ19 Transaction Control is used to --------- Manage the changes made by the DML statements 1.0000000 Manage the changes made by the SQL statements 0.0000000 Manage the changes made by the DDL statements 0.0000000 Manage the changes made by the DHL statements 0.0000000 MCQ20 DCL is specifically used to---- Only give access rights to both a database and the structures within 0.0000000 Give or remove access rights to both a database and the structures within 1.0000000 Only remove access rights to both a database and the structures within 0.0000000 Give or remove access rights to only a database 0.0000000 MCQ21 What do you understand by a conceptual model? A conceptual model represents relationships 0.0000000 A conceptual model represents 'concepts' (entities) and relationships between them 1.0000000 A conceptual model represents 'concepts' (entities) and indices 0.0000000 A conceptual model represents 'concepts' (entities) 0.0000000 MCQ22 DML is used to Arrange data from the database 0.0000000 Retrieve data from the database 1.0000000 Merge data from the database 0.0000000 Manage data from the database 0.0000000 MCQ23 One of the basic categories of SQL statements is the ___ DCC 0.0000000 DC 1.0000000 DCM 0.0000000 DMC 0.0000000 MCQ24 DDL is mainly used to _____ Change and remove data structures from tables 1.0000000 Change and remove data structures from databases 0.0000000 Change and remove data from tables 0.0000000 Change and remove data structures from rows 0.0000000 MCQ25 Normally, the Web service ------- Describes a standardized way of integrating Web-based applications using the LPM 0.0000000 Describes a standardized way of integrating Web-based applications using the XLM 0.0000000 Describes a standardized way of integrating Web-based applications using the LMX 0.0000000 Describes a standardized way of integrating Web-based applications using the XML 1.0000000 MCQ26 In information systems, changes made by the DML statements are managed by --------------- control Database 0.0000000 System 0.0000000 Transaction 1.0000000 Database 0.0000000 MCQ27 XML is the acronym for _____ Extensible Marking Language 0.0000000 Extensible Markup Language 1.0000000 Extensible Markup Logistic 0.0000000 X Markup Language 0.0000000 MCQ28 JDBC stands for Java Database Connectivity 1.0000000 Java Database Connection 0.0000000 Java Data management Connectivity 0.0000000 Java Data Connection 0.0000000 MCQ29 We use the following SELECT statement to select all the columns from the "Persons" table SELECT ** FROM Persons 0.0000000 SELECT DISTINCT column_name(s) FROM table_name 1.0000000 SELECT * Persons 0.0000000 SELECT FROM * Persons 0.0000000 MCQ30 A computer database relies upon software to organize the storage of data. This software is known as a--- Database management system 1.0000000 Database system 0.0000000 Database management 0.0000000 Management system 0.0000000 MCQ31 For numeric values, the correct statement is given as __ SELECT * FROM Persons WHERE Year=”1975” 0.0000000 SELECT * FROM Persons WHERE Year='1995” 0.0000000 SELECT * FROM Persons WHERE Year='1955' 0.0000000 SELECT * FROM Persons WHERE Year=1965 1.0000000 MCQ32 SQL SELECT DISTINCT Syntax can be written as ____ SELECT DISTINCT column_name(s) FROM table_name 1.0000000 SELECT DISTINCT table_name(s) FROM column_name 0.0000000 SELECT column_name(s) FROM table_name DISTINCT 0.0000000 SELECT DISTINCT column_name(s) FROM table_address 0.0000000 MCQ33 SQL SELECT Syntax:SELECT column_name(s) FROM--- Table _address 0.0000000 Table _format 0.0000000 table _name 1.0000000 table _data 0.0000000 MCQ34 WSDL is used for ----- Describing the services available 1.0000000 Connecting the services available 0.0000000 Depositing the services available 0.0000000 Providing the services available 0.0000000 MCQ35 SQL comprises of ___________ DML and DDL 1.0000000 DCL and DIL 0.0000000 DDL and DCL 0.0000000 DML and DC 0.0000000