Post Utme Chemistry Past Questions and Answers

Question 436:

The mass of silver deposited when a current of \(10 \mathrm{~A}\) is passed through a solution of silver salt for \(4830 \mathrm{sec}\) is ____________

\(\left(\mathrm{Ag}=108, \mathrm{~F}=96500 \mathrm{Cmol}^{-1} \right)\)

A. \(108.0 \mathrm{~g}\)
B. \(54.0 \mathrm{~g}\)
C. \(270 \mathrm{~g}\)
D. \(13.5 \mathrm{~g}\)

Question 437:

The oxidation state of oxygen in tetraoxosulphate (VI) acid is ____________

A. \(-4\)
B. \(-2\)
C. \(+4\)
D. \(-8\)

Question 438:

The reaction that takes place in Daniel cell is ____________

A. Direct combination
B. Redox
C. Double decomposition
D. Neutralization

Question 439:

The salt formed from a strong acid and a strong base is ____________

A. Complex
B. Neutral
C. Basic
D. Acidic

Question 440:

The type of reaction that is peculiar to benzene is to benzene is ____________

A. Addition
B. Hydrolysis
C. Polymerization
D. Substitution