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Objective Questions
GS
GS Set-1
Chemistry
Physical Chemistry
1

Physical Chemistry MCQ with Answers

1) Equivalent weight of iodine in its disproportionation to iodide and iodate ion will be:

M⁄6

M⁄4

3M⁄5

5M⁄3

Answer is:

M⁄6

Explanation:

.

Physical Chemistry MCQ with Answers

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Related Physical Chemistry MCQ with Answers

2) Total number of neutrons in 100 mL of 2M aqueous solution of phosphene will be [₁₅P³¹]:

3N^A

3.2N^A

0.2N^A

0.8N^A

Answer is:

3.2N^A

3) 23.4 gm of NaCl on reacting with 68 gm of AgNO₃ formed 57.4 gm of AgCl and 34 gm of NaNO₃. This is in accordance with:

The law of conservation of mass

The law of constant composition

The law of reciprocal proportion

None of these

Answer is:

The law of conservation of mass

4) 8 gm of CaCO₃ on heating gave 3.25 gm CO₂ gas. The mass of residue left is:

4 gm

4.48 gm

12 gm

16 gm

Answer is:

4.48 gm

5) In one experiment, 12 gm of Mg combines with 8 gm of O₂ to form 20 gm of MgO. In another experiment, when 150 gm of Mg combines with 100 gm of O₂, then 250 gm of MgO is formed. These two experiments follow:

The law of conservation of mass

The law of constant composition

The law of definite proportion

All of these

Answer is:

All of these

Physical Chemistry MCQ with Answers

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