The oxygen obtained form 72 kg of water is

Options

A. 72 kg
B. 46 kg
C. 50 kg
D. 64 kg

Answer

D

Explanation

The oxygen obtained from 72 kg of water is obtained by the following equation.
`{:(2H_(2)O,rarr,2H_(2),+,O_(2)),(2(2+16)=36,,,,(2xx16)=32):}`
Therefore, 36 kg of water produce 32 kg of oxygen.
Hence, `72` kg of water produce oxygen
`=(32xx72)/36=64` kg.