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Q.

The mass of zinc (Zn=65 ) required to produce 224 ml of H2 at STP on treatment with dilute H2SO4 is

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a

0.65 g

b

3.25 g

c

0.065 g

d

6.5 g

answer is B.

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Detailed Solution

Zn+H2SO4→ZnSO4+H2

65 g ________22400 mL

? _______224 mL

=22422400×65

= 0.65g

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