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Which of the following reaction involves...

Which of the following reaction involves oxidation reduction?

A

`NaBr+Hclrarr NaCl+HBr`

B

`HBr + AgNO_(3)rarr AgBr+HNO_(3)`

C

`2NaOH+H_(2)SO_(4)rarrNa_(2)SO_(4)+2H_(2)O`

D

`H_(2)+Br_(2) rarr 2HBr`

Text Solution

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The correct Answer is:
D
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  6. In substance Mg(HXO(3)), the oxidation number of X is :-

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