Chemistry Past Questions, Answers & Explanations For JAMB, WAEC, NECO & Post UTME - Chemistry

Chemistry Questions

Question 201:

Which of the following derivatives of nitrogen affords an aqueous solution having a pH of less that 7?

Question 202:

Detergents are more advantageous than soaps in hard water districts because

A On treatment with hard water they either form soluble calcium salts or do not react with calcium ion
B On treatment with hard water they form soluble calcium salts
C On treatment with hard water they form sodium salts
D On treatment with hard water they are converted into soaps
E On treatment with hard water they form more lather than soaps does

Question 203:

Which of the following classes of organic compounds undergoes rapid oxidation with bromine water?