Portada JAMB Chemistry Past Questions 2011 | Free Practice Test & Answers
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JAMB Chemistry Past Questions 2011 | Free Practice Test & Answers

Creado por: juanbacan
Prepare for success in JAMB with 2011 Chemistry past questions and answers. Access free practice tests, review key topics, and boost your exam readiness today.Sin descripción disponible.

Question 16

\(\ce{N2O4(g) <=> 2 NO2(g)}\) \(\Delta H = +ve\). In the reaction above, an increase in temperature will

A)

increase the value of the equilibrium constant

B)

shift the equilibrium to the left

C)

decrease the value of the equilibrium constant

D)

increase the proportion of reactants

How to solve?

Question 17

\(\text{CH}_3\text{COOH}_{(aq)} + \text{OH}^-_{(aq)} \; \rightleftharpoons \; \text{CH}_3\text{COO}^-_{(aq)} + \text{H}_2\text{O}_{(l)}\)

In the reaction above, \(\ce{CH3COO^-_{(aq)}}\) is

A)

conjugate base

B)

acid

C)

base

D)

conjugate acid

How to solve?

Question 18

How many cations will be produced from a solution of potassium aluminium tetraoxosulphate (VI)?

A)

3

B)

4

C)

1

D)

2

How to solve?

Question 19

Which of the following is NOT an alkali?

A)

NH3

B)

Mg(OH)2

C)

Ca(OH)2

D)

NaOH

How to solve?

Question 20

An effect of thermal pollution on water bodies is that the

A)

volume of water reduces

B)

volume of chemical waste increase

C)

level of oxides of nitrogen increase

D)

level of oxygen reduces

How to solve?

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