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Question

The approximate concentration of H2O2 in perhydrol is :
  1. 30 gm/litre
  2. 300 gm/ml
  3. 10 gm/litre
  4. 300 gm/litre

A
30 gm/litre
B
300 gm/ml
C
300 gm/litre
D
10 gm/litre
Solution
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Perhydrol is approximately 30% hydrogen peroxide in water. So, 100 ml solution contain 30 ml hydrogen peroxide or 1 Litre solution contain 300 ml of hydrogen peroxide.

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