1.

What mass of HNO_3 is required to make llitre of 2N solution to be used as an oxidizing agent in the reaction ? 3Cu + 8HNO_3 rarr 3Cu(NO_3)_(2)+2NO+4H_2O

Answer»

chlorine
potassium
nitrogen
sulphur

Solution :An oxiding agent is a species which ACCEPTS an electron or electros. Hydrogen accepts an electron from potassium when it FORMS KH.
`H_2 + 2K to 2KH (K^(+) H^(-))`


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