Questions
1% obtained is extracted with water. The steps involved in its concentration are given below.
I) Evaporation under reduced pressure
II) Distillation under reduced pressure
III) Freezing
The proper sequence of above steps is
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Correct option is A
After I – 30% H2O2 is obtainedAfter II – 85% H2O2 is obtainedAfter III – needle shaped crystals of pure H2O2 are obtained
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100 cm3 of a given sample of H2O2, gives 1000 cm3 of O2 at STP. The given sample is
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