Question

Which pair of species have same percentage of carbon?
(A) CH₃COOH and C₆H₁₂O₆
(B) CH₃COOH and C2H₅OH
(C) HCOOCH₃ and C₁₂H₂₂O₁₁
(D) C₆H₁₂O₆ and C₁₂H₂₂O₁₁

Answer 1

The answer is B

hope this answer helps .......

Answer 2

Dear Yasar,

◆ Answer -
(A) CH₃COOH and C₆H₁₂O₆

◆ Explanation -
Compounds with same empirical formula would have same percentage of carbon in them.

Let's see empirical formula of mentioned hydrocarbons -
A) CH₃COOH => CH₂O & C₆H₁₂O₆ => CH₂O
B) CH₃COOH => CH₂O & C₂H₅OH => C₂H₆O
C) HCOOCH₃ => CH₂O & C₁₂H₂₂O₁₁ => C₁₂H₂₂O₁₁
D) C₆H₁₂O₆ => CH₂O & & C₁₂H₂₂O₁₁ => C₁₂H₂₂O₁₁

As empirical formula of CH₃COOH and C₆H₁₂O₆ are same, they will have same percentage of carbon.

Hope this helped you. Thanks for asking..