JAMB Chemistry Past Questions & Answers - Page 64

316.

A balanced chemical equation obeys the law of

A.

conservation of mass

B.

definite proportions

C.

multiple proportions

D.

conservation of energy

Correct answer is A

No explanation has been provided for this answer.

317.

Which of the following are mixtures? 
I. Petroleum 
II. Rubber latex 
III. Vulcanizer's solution 
IV. Carbon sulphide

A.

I, II and III

B.

I, II and IV

C.

I and II only

D.

I and IV

Correct answer is A

No explanation has been provided for this answer.

318.

The refreshing and characteristic taste of soda water and other soft drinks is as a result of the presence of

A.

carbon(IV)oxide

B.

carbon(ll)oxide

C.

soda

D.

glucose

Correct answer is A

No explanation has been provided for this answer.

319.

(I). 3CuO(s) + 2NH3(g) -----> 3Cu(s) + 3H2O(l) + N2(g) 
(II). 2NH3(g) + 3Cl2(g) -----> 6HCl(g) + N2(g) 
(III). 4NH3(g) + 3O2(g) -----> 6H2O(l) + N2(g) 
The reactions represented by the equations above demonstrate the

A.

basic properties of ammonia

B.

acidic properties of ammonia

C.

reducing properties of ammonia

D.

oxidizing properties of ammonia

Correct answer is C

No explanation has been provided for this answer.

320.

mE + nF -----> pG + qH 
In the equation shown, the equilibrium constant is given by?

A.

\(\frac{[E]^m[F]}{[G]^p[H]^q}\)

B.

\(\frac{[E][F]}{[G][H]}\)

C.

\(\frac{[G]^p[H]^q}{[E]^m[F]^n}\)

D.

\(\frac{[G][H]}{[E][F]}\)

Correct answer is C

No explanation has been provided for this answer.