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Chemistry
Dilute solutions of H2O2 cannot be concentrated by
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Q. Dilute solutions of $H_2O_2$ cannot be concentrated by
A
vacuum distillation
40%
B
treatment with $P_2O_5$
20%
C
fractional crystallization at lower temperatures
40%
D
careful and slow evaporation in shallow dish
0%
Solution:
Correct answer is (b) treatment with $P_2O_5$