Preparation and Properties of Hydrogen, Oxygen, Nitrogen and Carbon dioxide, Oxidation and Reduction NDA Questions

NDA Chemistry

Preparation and Properties of Hydrogen, Oxygen, Nitrogen and Carbon dioxide, Oxidation and Reduction MCQ Questions


1.

Which of the following aqueous solutions will have highest pH?

A.

NH2Cl

B.

Na2CO3

C.

NaCl

D.

None of the above

😑 View Answer Rough Work Error
ANSWER :

B. Na2CO3

2.

What is the pH of a 0.10 M solution of barium hydroxide, Ba (OH)2?

A.

12.3

B.

12.5

C.

13.3

D.

16.4

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ANSWER :

C. 13.3

3.

Among the following the weakest Bronsted base is _________

A.

F–

B.

Cl–

C.

I–

D.

None of the above

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ANSWER :

C. I–

4.
When equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed, the hydroxide ion concentration is
A.
12.2
B.
12.55
C.
12.6
D.
12.65
😑 View Answer Rough Work Error
ANSWER :
D. 12.65
5.

Which of the following oxides is not expected to react with sodium hydroxide?

A.

CaO

B.

NaCl

C.

Na2CO3

D.

None of the above

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ANSWER :

A. CaO

6.

H2O2 used in rocket has the concentration__________

A.

40%

B.

50%

C.

60%

D.

90%

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ANSWER :

D. 90%