Question

state whether the reaction is oxidation or reduction​

Answer 1

Answer:

QUESTION NO:- 1 AND 2 ARE OXIDATION

QUESTION NO:- 3 AND 4 ARE REDUCTION

Explanation:

IN QUESTION 1 THE CHARGE OF Na GETS INCREASE FROM 0 TO +1

AND OXIDATION IS INCREASE IN ON ( OXIDATION NUMBER)

SIMILARLY,

QUESTION 2 ALSO FOLLOWS

IN QUESTION 3 THE CHARGE OF Ca^2+ DECREASE FROM 2+ TO 0

AND REDUCTION IS DECREASE IN ON ( OXIDATION NUMBER)

SIMILARLY,

QUESTION 4 ALSO FOLLOWS

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