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Question : 134 of 160
Marks:
+1,
-0
Solution:
Consider the given reaction.
‌⇌2H2O+‌ By the definition of volume strength,
(a) 100 volume of
H2O2 means
1ml of
H2O2=100ml of
O2 at STP Therefore,
2ml‌ of ‌H2O2‌‌=2×100 ‌‌=200ml‌ of ‌O2 (b) 30 volume of
H2O2 means
1ml of
H2O2=30ml of
O2 at STP Therefore,
500ml‌ of ‌H2O2‌‌=30×500 ‌‌=15,000ml‌ of ‌O2 (c) 10 volume of
H2O2 means
1ml of
H2O2=10ml of
O2 at
STP Therefore,
1000ml‌ of ‌H2O2‌‌=10×1000ofO2 ‌‌=10,000ml‌ of ‌O2 (d) 20 volume of
H2O2 means
1ml of
H2O2=20ml of
O2 at
STP Therefore,
100ml‌ of ‌H2O2‌‌=20×100 ‌‌=2,000ml‌ of ‌O2
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