A) 40
B) 60
C) 8
D) 10
Correct Answer: A
Solution :
[a] \[\because \] 40 gm. \[NaOH\] contains 16 gm. of oxygen. \[\therefore \] 100 gm. of \[NaOH\] contains \[=\frac{16}{40}\,\,\,100=40%\] OxygenYou need to login to perform this action.
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