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Chemistry Question on Some basic concepts of chemistry

The percentage of C, H and N in an organic compound are 40%, 13.3% and 46.7% respectively then emprirical formula is

A

C3H13N3

B

CH2N

C

CH4N

D

CH6N

Answer

CH4N

Explanation

Solution

The correct option is (C) : CH4N

We have the percentage by weight of various atoms in the organic compound. Using this, we can calculate the percentage of the number of atoms by simply dividing the mass percent by atomic mass. Ratio of atoms = C : H : N= 4012:13.31:46.714\frac{40}{12}:\frac{13.3}{1}:\frac{46.7}{14}