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Modern Periodic Table

A metal 'M' h...

Question

A metal 'M' has the electronic configuration 2, 8, 3 and occurs in nature as M $_{2}$ O $_{4}$ . It is more reactive than zinc. Name the ore from which this metal is extracted.

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Solution

The given metal is aluminium and the ore from which it is extracted is bauxite; $A l_{2} O_{3} .2 H_{2} O$ .

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Q. A metal 'M' has the electronic configuration 2, 8, 3 and occurs in nature as M

_{2}

_{4}

. It is more reactive than zinc. Write a chemical equation illustrating the use of this metal for joining cracked railway lines.

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2, 8, 2

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Q. The electronic configuration of metal 'A' is 2, 8, 1. and that of metal 'B' is 2, 8, 2. Which of the two metals is more reactive? Write their reaction with dilute hydrochloric acid.

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(c) Describe the extraction of zinc metal from its sulphide ore as well as its carbonate ore. Write equations of all the reactions involved.

Metal 'M' has the electronic configuration 2, 8, 1.

(i) What is the valency of Metal 'M'?

(ii) Is it oxidizing or reducing in nature?

(iii) Give the formula of its chloride.

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