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UTME Chemistry 2009 JAMB Past Questions and Answers, Jamb, Pre-degree, Nursing, Waec, Neco

UTME Chemistry 2009 JAMB Past Questions and Answers, Jamb, Pre-degree, Nursing, Waec, Neco

UTME Chemistry 2009 JAMB Past Questions and Answers

1. The oxidation of ammonia in excess air produces

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Options

A) NO

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B) N2O

C) NO2

D) N2O4

The correct answer is A.

2.  Hydrogen sulphide gas can act as

Options

A) an oxidizing agent

B) a dehydrating agent

C) a bleaching agent

D) a precipitating agent         

The correct answer is D.

3.  Which of the following metals is purified commercially by electrolysis?

Options

A) Zn

B) Fe

C) Sn

D) Cu

The correct answer is D.

5.  What current will deposit 3.25g of zinc in 2hrs?

[Zn = 65, F = 96500 mol]

Options

A) 3.25A

B) 2.00A

C) 1.34A

D) 0.67A

The correct answer is C.

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