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Oxidation and Reduction

What occurs w...

Question

What occurs when an atom is oxidized in a chemical reaction?

A

loss of electrons; decrease in O.N.

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B

loss of electrons; increase in O.N.

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C

gain of electrons; decrease in O.N.

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D

gain of electrons; increase in O.N.

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Solution

The correct option is B
loss of electrons; increase in O.N.

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Similar questions

What occurs when an atom is oxidized in a chemical reaction?

Q. (i) What happens when zinc granules are treated with dilute solution of

H_{2} S O_{4}

? Also write the chemical equations if reaction occurs.

(ii) What happens when zinc granules are treated with dilute solution of HCl? Also write the chemical equations if reaction occurs.

(iii) What happens when zinc granules are treated with dilute solution of

H N O_{3}

? Also write the chemical equations if reaction occurs.

(iv) What happens when zinc granules are treated with dilute solution of NaCl? Also write the chemical equations if reaction occurs.

(v) What happens when zinc granules are treated with dilute solution of NaOH? Also write the chemical equations if reaction occurs.

Oxidation is the process in which an atom or a group of atoms taking part in a chemical reaction loses one or more electron.

Q. A dry pellet of a common base B, when kept in open absorbs moisture and turns sticky. The compound is also a by-product of chlor-alkali process. Identify B, what type of reaction occurs when B is treated with an acidic oxide ? Write a balanced chemical equation for one such solution.

Q. (a) What is the nature of the oxide SO₂? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.
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