Question

The empirical formula of a compound is CH₂O. 0.0835 moles of the compound contains 1.0 g of hydrogen. Molecular formula of the compound is ________. 

(A) C₆H₁₂O₆ 

(B) C₅H₁₀O₅ 

(C) C₄H₈O₄ 

(D) C₃H₆O₃

Answer 1

Correct option: (A) C₆H₁₂O₆ 

Since, 0.0835 mole of compound contains 1 gm of hydrogen

1 g mole of compound contain

= \(\cfrac{1}{0.0835}\) = 11.97 ≈ 12 g of hydrogen.

12 g of H is present in C₂H₁₂O₆