ICSE Class 10 Chemistry 2018 Solved Paper

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Question : 58
Total: 80
If 150 cc of gas A contains X molecules, how many molecules of gas B will be present in 75 cc of B ?
Solution:  
If 150cc of gas A contains = X molecules then 75 cc of gas B contains =
X
150
×75

=
X
2
molecules
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