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Question:

The mixture of hydrogen and carbon monoxide is called?

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A: Water gas
B: Hydrogen gas
C: Natural gas
D: All of these
Answer: A
Sindh -> 12th Class -> Chemistry  -> Hydrogen fatimataufiq
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Question:

In the electrolysis of water which is collect at cathode?

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A: Nitrogen gas
B: Hydrogen gas
C: Oxygen gas
D: None of these
Answer: B
Sindh -> 12th Class -> Chemistry  -> Hydrogen fatimataufiq
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