Which gas is used in the preparation of soda water? MCQ with Answer and Explanation

Which gas is used in the preparation of soda water?
A. Oxygen
B. Hydrogen
C. Nitrogen
D. Carbon Dioxide
Answer: Option D
Solution (By JKSSB Mock Tests)
Carbon dioxide is dissolved in water under high pressure to make carbonated (soda) water.

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What is the SI unit of force?
A. Joule
B. Pascal
C. Watt
D. Newton

Correct Answer: Option D


Explanation:
The Newton (N) is the SI unit of force.

Question #2
Which vitamin is synthesized by sunlight in the skin?
A. Vitamin B
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Correct Answer: Option B


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Exposure to sunlight allows the skin to produce Vitamin D.

Question #3
Who discovered the polio vaccine?
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Correct Answer: Option D


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Jonas Salk developed the polio vaccine.