Question

i.
Which cannot be used to dry hydrogen gas?
a. Fused calcium chloride
b.Caustic potash
c. Phosphorous pentaoxide
d.Conc. Sulphuric acid​

Answer 1

Answer:

C

Explanation:

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Answer 2

Answer:

d. Conc. Sulphuric Acid. Because it will react with hydrogen. Thus, defeating the purpose of the reaction.

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