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CHM292



Question: Most metals react with acids to form
Answer: [D] Both A and B

Question: The heat of neutralization of a strong acid with a strong base is approximately
Answer: [D] 57.4 kJ/mol

Question: In chemical equation, the symbol \'aq\' represents
Answer: [D] both A and B

Question: Ether layer is used to extract
Answer: [C] organic impurities

Question: pH of soils can be controlled through
Answer: [A] neutralization

Question: Which statement about the vaporization of acetone, /(CH_{3}COCH_{3}/), is not correct ?
Answer: [B] When acetone vaporizes, covalent bonds are broken.

Question: Which of the following changes is not exothermic?
Answer: [A] Melting copper.

Question: Which of the following is the standard state of iodine at 298 K?
Answer: [D] /(I_{2}/) (s)

Question: Which of these is not a colligative property?
Answer: [A] mass

Question: Which statement is correct about the fusion of copper?
Answer: [A] Heat is required.