Questions
0.2 g of an organic compound on complete combustion produces 0.18 g of water, then the percentage of hydrogen in it is:
detailed solution
Correct option is B
We know, in 1mol i.e. 18g of , hydrogen content is = 2 g
Therefore, in 1 g , hydrogen content will be = g
Thus, in 0.18 g , hydrogen content will be = g = 0.02 g
From this, we can assume that;
0.2 g of organic compound gives = 0.02 g hydrogen
1 g of organic compound gives = g hydrogen
Therefore, 100g of organic compound gives = hydrogen.
Thus, the correct answer is option (B) 10.
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