Telegram group: T.me/BBCNOUN ====== CHM101 ====== 1. The reduction of aldehydes, ketones, organic acids and their derivatives to give alcohols is made possible by the use of ____ --->> Lithium aluminium hydride lithium sulphide lithium ore lithium oxide 2. The high boiling and melting points of water is attributed to _____ --->> hydrogen bonding covalent bonding dative bonding ionic bonding 3. Alkali metals are very good___ of heat and electricity source distribution --->> conductor neutralizer 4. A very useful fluid to life that has iron(Fe) as a central metal atom is called ____ mucus body water --->> haemoglobin synovial fluid 5. Boron hydride is an example of ____ covalent hydrides trimeric --->> dimeric single monomeric 6. Consider the elements : Br, Ca, Na, Mg. Which of the these elements is most electronegative ? --->> Br Mg Ca Na 7. A group of ions or molecules surrounding a central metal atom are called_____ --->> Ligands adsorbent addendum adduct 8. metallic hydrides are ____than the parent metal. highly viscous more dense more coloured --->> less dense 9. Bright yellow light on the street are made up of _____ Aufbau light manganese light --->> sodium light oxygen light 10. Sodium trioxocarbonate is used in ____ powder dusting --->> baking soluble adsorbent