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Phosphine on decomposition produces phos...

Phosphine on decomposition produces phosphorus and hydrogen. When 100 ml of phosphine are decomposed the change in volume under laboratory conditions is 

A

50 ml increase

B

50 ml decrease

C

900 ml decrease

D

75 ml increase

Text Solution

Verified by Experts

The correct Answer is:
A
`2PH_(3)rarr2P_((s))+3H_(2)`
`2L rarr 3L`
`100 ml rarr 150 ml`
`therefore` Change in volume = 50 mL increase
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