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Standard X

Chemistry

Ionic Bond

When a metal ...

Question

When a metal atom becomes an ion __.

it loses electrons and is oxidized.

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it gains electrons and is reduced.

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it gains electrons and is oxidized.

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it loses electrons and is reduced.

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Solution

The correct option is A
it loses electrons and is oxidized.

When a metal atom loses an electron, it becomes positively charged. Ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

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Similar questions

Choose the correct answer from the choices A, B, C and D :

(i) The property which is characteristic of an electrovalent compound is that :

A. it is easily vaporized,

B. it has a high melting point,

C. it is a weak electrolyte,

D. it often exists as a liquid.

(ii) When a metal atom becomes an ion :

A. it loses electrons and is oxidized,

B. it gains electrons and is reduced,

C. it gains electrons and is oxidized,

D. it loses electrons and is reduced.

Choose the correct optiom

When a metal atom becomes an ion

1)it loses electrons and it is oxidised

2)it gains electrons and it's reduced

3)it loses electrons and it's reduced

4)it gains electrons and it's oxidised

(b) Choose the correct answer from the choices (A), (B), (C) and (D):
(i) The property which is characteristic of an electrovalent compound is that:
(A) it is easily vaporized
(B) it has a high melting point
(C) it is a weak electrolyte
(D) it often exists as a liquid
(ii) When a metal atom becomes an ion:
(A) it loses electrons and is oxidized
(B) it gains electrons and is reduced
(C) it gains electrons and is oxidized
(D) it loses electrons and is reduced
(iii) Which of the following hydroxides is not an alkali?
(A) ammonium hydroxide
(B) calcium hydroxide
(C) copper hydroxide
(D) sodium hydroxide

Choose the correct answer from the choices (a), (b), (c) and (d):
(i) The property which is characteristic of an electrovalent compound is that:
(a) it is easily vaporized
(b) it has a high melting point
(c) it is a weak electrolyte
(d) it often exists as a liquid.

(ii) When a metal atom becomes an ion:
(a) it loses electrons and is oxidised
(b) it gains electrons and is reduced
(c) it gains electrons and is oxidised
(d) it loses electrons and is reduced.

(a) Acids dissolve in water and produce positively charged ions. Draw the structure of these positive ions.

(b) Explain why Carbon tetrachloride does not dissolve in water.

(c) Elements Q and S react together to form an ionic compound. Under normal conditions, which physical state will the compound QS exist in ?

(d) Can Q and S, both be metals ? Justify your answer.

(e) The property which is characteristic of an electrovalent compound is that :

A. it is easily vaporized,

B. it has a high melting point,

C. it is a weak electrolyte,

D. it often exists as a liquid.

(f) When a metal atom becomes an ion :

A. it loses electrons and is oxidized,

B. it gains electrons and is reduced,

C. it gains electrons and is oxidized,

D. it loses electrons and is reduced.

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When a metal atom becomes an ion __.

The correct option is A it loses electrons and is oxidized. When a metal atom loses an electron, it becomes positively charged. Ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

The correct option is A
it loses electrons and is oxidized.

When a metal atom loses an electron, it becomes positively charged. Ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.