One mole of \[{{N}_{2}}{{H}_{4}}\] loses 10 mol of electrons to form a new compound Y. Assuming that all nitrogen appear in the new compound, what is the oxidation state of \[{{N}_{2}}\]in Y ? (There is no change in the oxidation state of hydrogen) [IIT 1981; Pb. PMT 1998]

One mole of \[{{N}_{2}}{{H}_{4}}\] loses 10 mol of electrons to form a

1.	One mole of \[{{N}_{2}}{{H}_{4}}\] loses 10 mol of electrons to form a new compound Y. Assuming that all nitrogen appear in the new compound, what is the oxidation state of \[{{N}_{2}}\]in Y ? (There is no change in the oxidation state of hydrogen) [IIT 1981; Pb. PMT 1998]
A.	+ 3
B.	-3
C.	- 1
D.	5
Answer» B. -3

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One mole of \[{{N}_{2}}{{H}_{4}}\] loses 10 mol of electrons to form a new compound Y. Assuming that all nitrogen appear in the new compound, what is the oxidation state of \[{{N}_{2}}\]in Y ? (There is no change in the oxidation state of hydrogen) [IIT 1981; Pb. PMT 1998]

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