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1 lit of oxygen and 3 lit of SO(2) at ST...

1 lit of oxygen and 3 lit of `SO_(2)` at STP are reacted to produce sulphur trioxide . Then the ratio of between volume of sulphur trioxide and that of sulphur dioxide after reaction and weight of `SO_3` formed (in grams) respectively are

A

`1:2 , 7:14 gms`

B

`2:1 , 14.28 gms`

C

`2:1 , 7.14 gms`

D

`1:1 , 14.28 gms`

Text Solution

Verified by Experts

The correct Answer is:
C
`2SO_(2)+O_(2)rarr2SO_(3)`
2 lit `larr` 1 lit `larr` 2 lit
implies 1 lit `SO_(2)` left
`therefore (SO_(3))/(SO_(2))=(2)/(1)`
Weight of `SO_(3)=(2)/(22.4)xx80=7.14g`
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