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Q.

2H2+O22H2O.  In the given equation on using 2g of hydrogen, the amount of  H2O formed is

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a

9 g

b

18 g

c

36 g

d

54 g

answer is A.

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Detailed Solution

2H2+O2  2H2O

2 moles of H2          2 moels of H2O

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2×2g ×? = 2×2×18

=2×2×182×2

=18g

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