Some Basic Concepts Of Chemistry Question 256

Question: 16.8 litre gas containing H2 and O2 is formed at NTP on electrolysis of water. What should be the weight of electrolysed water

Options:

A) 5 g

B) 9 g

C) 10 g

D) 12 g

Show Answer

Answer:

Correct Answer: B

Solution:

n =16.822.4=0.75 mole of H2 and O2

2H2O2H2+O22:1,

2 mole H2 ? 2 mole H2O

0.5 mole H2 ­? 0.5 mole H2O = 9gm.



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