102
Question
Zinc granules are used in laboratory preparation of hydrogen because it consists of _____ which acts as a catalyst and speeds up the rate of reaction.
Zinc granules are used in laboratory preparation of hydrogen because it consists of _____ which acts as a catalyst and speeds up the rate of reaction.
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Solution
The correct option is B copper
Granulated zinc is preferred than pure zinc because the reaction with pure zinc is very slow. Copper impurities present in granulated zinc has a catalysing effect, and thus helps in speeding up the reaction.
Granulated zinc is preferred than pure zinc because the reaction with pure zinc is very slow. Copper impurities present in granulated zinc has a catalysing effect, and thus helps in speeding up the reaction.
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