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Q10) 100ml of PH3 when decompsed produces phosphorus and hydrogen. The change in volume is .... [ CPMT 1986]


2PH3 → 2P + 3H2
P is solid, And two moles of PH3 decomposes to produce 3 mole of hydrogen
Thus 100 ml will produce 150ml of hydrogen
Increase is 50ml
Answer: (a)