Question

In which of these compounds are there twice as many oxygen atoms as hydrogen atoms

Answer 1

Answer:

$H_2SO_4$

Explanation:

In the first option, the compound $HClO_3$ has 1 hydrogen atom and 3 Oxygen atoms. There are 3 times as many oxygen atoms as hydrogen atoms.

In the second option, the compound $H_2SO_4$ has 2 hydrogen atom and 4 Oxygen atoms. That is 2:4 = 1:2. Therefore, there are twice as many oxygen atoms as hydrogen atoms.

In the third option, the compound $H_2O$ has 2 hydrogen atoms and 1 Oxygen atom. There are ½ times as many oxygen atoms as hydrogen atoms.

In the fourth option, the compound $H_3PO_4$ has 3 hydrogen atoms and 4 Oxygen atoms. 4 oxygen atoms to 3 hydrogen atoms.