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11th revision quiz: Hydrogen and s-block-2

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Question 1

Abudance of H2 in the earth's atmosphere is very small. This is because -

Question 2

Free hydrogen is found in -

Question 3

Metals like Pt and Pd can take up large volume of hydrogen under special conditions. Hydrogen thus retained by the metal is called-

Question 4

Point out the incorrect statement -

Question 5

When the same amount of zinc is treated separately with excess of sulphuric acid and excess of sodium hydroxide, the ratio of volumes of hydrogen evolved is -
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Apr 20JEE & BITSAT