In Ba(NO3) 2,the oxidation number of nitrogen is
A) -3
B) -1
C) +4
D) +5
Correct Answer:
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Q71: In MnCr2O7,the oxidation number of chromium is
A)+2
B)-2
C)+12
D)+6
Q72: Which does not involve oxidation-reduction?
A)Burning sodium in
Q73: In the electrolysis of fused (molten)calcium chloride,the
Q74: Moving from the top to the bottom
Q75: In an electrolytic cell the charge of
Q77: Which is the principal characteristic of all
Q78: In a voltaic cell,reduction occurs at the
A)External
Q79: In the electrolysis of fused (molten)calcium chloride,the
Q80: The products of the reaction between iron
Q81: Balance the following redox reaction is acidic
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