List of top Chemistry Questions on Mole concept and Molar Masses asked in KEAM

An organic compound contains $40\%$ C and $6.7\%$ $H_2$. What is the empirical formula of the compound?

The number of electrons in one mole of methane (CH\(_4\)) is:

The empirical formula of an organic compound is $CH_{2}$. The molar mass of the compound is $56g~mol^{-1}$. The organic compound is ________.