gneet

Study Companion

For more NEET and AIIMS mcq on Chemical arithmetic and volumetric analysis Visit www.gneet.com
Question
Q10) 100ml of PH3 when decompsed produces phosphorus and hydrogen. The change in volume is .... [ CPMT 1986]




SOLUTION

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)