Question

In hydrogen peroxide (H2O2), the proportion of hydrogen and oxygen by mass is (a) 1 8
(b) 1 16
(c) 8 1
(d) 16 1

Answer 1

The answer is Option (b)

Explanation:

• As per Hydrogen (H) Atomic Number is 1,  

• So, $H_2$ has atoms = $2 \times 1$ = 2

• Similarly, Oxygen (O) has an atomic number = 8

• So, $O_2$ has atoms = $2 \times 8$ = 16

The proportion of hydrogen and oxygen by mass in hydrogen peroxide can be calculated as-

$(H_2O_2) = 2 \times H(1): 2 \times O(16)$ = 2:32 = 1:16.

Answer 2

Answer:

1:16 ......................