10 litres of `O_(2)` gas is reacted with 30 litres of CO at S.T.P. The volumes of each gas present at the end of the reaction are

Options

A. `CO("10 litre"),CO_(2)("20 litre")`
B. `O_(2)("10 litre"),CO("30 litre")`
C. `CO("20 litre"),CO_(2)("10 litre")`
D. `O_(2)("10 litre"),CO_(2)("20 litre")`

Answer

A

Explanation

`CO(g)+(1)/(2)O_(2)(g) to CO_(2)(g)`
`{:(,t=0,30L,10L,0),(,"After reaction",(30-20)L,0,20L):}`