When zinc metal react with dil sodium hydroxide on heating the gas evolved? (1)turns lime water milky (2)supports combustion (3)has a pungent smell (d)burns with a pop sound kooda
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H2 gas is evolved.
Explanation:
burns with a pop sound kooda
like water turns milky on passing C02 through lime water so 1 option incorrect,H2 is combustible but not a supporter of combustion
H2 does not have a smell so option 4 is correct
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