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Chemistry MCQs

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Chemistry MCQs by CSS MCQs

Chemistry MCQs by CSSMCQs

Here, you will find all Chemistry MCQs with their Answers. These MCQs would help you achieve good marks in ALL kinds of entry tests of  FPSC, PPSC, KPPSC, SPSC, NTS, PTS, OTS, CTS, MDCAT, ECAT, ETEA, NUMS and all other entry tests preparation etc. They will also help you get better marks in any types of job or university admission tests. Our focus will be on the fundamental level of the Chemistry course. However, advance level and its main branches MCQs will also be shared with their correct answers. For other subject’s MCQs Click HERE

If 1/V is plotted on X-axis and pressure on Y-axis at constant temperature what should appear

A. A straight line parallel to the x-axis
B. A straight line parallel to the y-axis
C. Straight line
D. Curve

Show Answer…
Correct Answer: C. Straight line
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Which one is the right value for R?

A. 0.0821 atm dm3k-1mol-
B. 0.0821 atm m3k-1mol-1
C. 2 cal k-1 mol-1
D. 8.314 Nm2k-1mol-1

Show Answer…
Correct Answer: A. 0.0821 atm dm3k-1mol-
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Which one is not the partial pressure of oxygen in the lungs?

A. 0.1526 atm
B. 116 mm of Hg
C. 116 torr
D. 1 atm

Show Answer…
Correct Answer: D. 1 atm
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The spreading of fragrance or scent in the air is due to

A. Diffusion
B. Effusion
C. Attraction with air
D. Low density

Show Answer…
Correct Answer: A. Diffusion
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The volume of one kilogram of water at 4°C is equal to one litre. The temperature of water is kept at 4°C because water

A. has no dissolved gasses at this temperature
B. has maximum density at this temperature
C. polarity of water molecule is least at this temperature
D. dipole moment has maximum value at this temperature

Show Answer…
Correct Answer: B. has maximum density at this temperature
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A piece of paper is burnt in air, the gas produced is passed through distilled water. The PH of water solution will be

A. 1
B. 7
C. 2.1
D. 6.8

Show Answer…
Correct Answer: D. 6.8
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