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Chemistry Questions and Answers

Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.

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646.

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

I, II and III

I, II and IV

I and II only

I and IV

View answer & explanation

Correct answer is A

No explanation has been provided for this answer.

647.

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

carbon(IV)oxide

carbon(ll)oxide

soda

glucose

View answer & explanation

Correct answer is A

No explanation has been provided for this answer.

648.

(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

basic properties of ammonia

acidic properties of ammonia

reducing properties of ammonia

oxidizing properties of ammonia

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

649.

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

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

$\frac{[E][F]}{[G][H]}$

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

$\frac{[G][H]}{[E][F]}$

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

650.

Beryllium and Aluminium have similar properties because they

are both metals

belong to the same group

belong to the same period

are positioned diagonally to each other

View answer & explanation

Correct answer is A

No explanation has been provided for this answer.

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