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निम्नलिखित परिवर्तन में, 3Fe+ 4H2O + Fe3...

निम्नलिखित परिवर्तन में, `3Fe+ 4H_2O + Fe_3O_4 + 4H_2` यदि आयरन का परमाणु भार 56 है, तब उसका तुल्यांकी भार होगा:

A

42

B

21

C

63

D

84

Text Solution

Verified by Experts

The correct Answer is:
B

`3Fe^0 to Fe_(3)^(+(8//3)) + 8e^(-)`
इसलिए, `E = (M)/(n - "गुणांक") = M/(8//3) = (56 xx 3)/(8) = 21`
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