Question

Which molecule contains the smallest number of hydrogen atoms? A) N2H4. B) Al(OH) 3. C) (NH4) 2SO4. D) NH4NO3.

Answer 1

The molecule that contains the fewest number of Hydrogen atoms would be B. Al(OH)3. It only has 3 Hydrogen atoms.

Answer 2

Answer: Option (B) is the correct answer.

Explanation:

In a molecule of
`N_(2)H_(4)`, there are 2 nitrogen atoms and 4 hydrogen atoms.

In a molecule of
`Al(OH)_(3)`, there are one aluminium atom, three oxygen atoms, and three hydrogen atoms.

In a molecule of
`(NH_(4))_(2)SO_(4)`, there are 2 nitrogen atoms, 8 hydrogen atoms, one sulfur atom and 4 oxygen atoms.

In a molecule of
`NH_(4)NO_(3)`, there are 2 nitrogen atoms, 4 hydrogen atoms and 3 oxygen atoms.

Therefore, we can conclude that out of the given options
`Al(OH)_(3)` is the molecule which contains the smallest number of hydrogen atoms.