D-And F-Block Elements Ques 30

Question: The equivalent weight of K2Cr2O7 in acidic medium

Options:

A) 294

B) 298

C) 49

D) 50

Show Answer

Answer:

Correct Answer: C

Solution:

K2Cr2O7+3H2SO4,K2SO4+Cr2(SO4)3+3,(O)+3H2 No. of electrons lossed = 12 - 6 = 6 \ Equivalent weight = M6=2946=49.



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