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11th Standard English Medium Chemistry Subject Periodic Classification of Elements Creative 2 Mark Questions with Solution Part - I

Published on: 25/06/2021

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Std: 11th Standard - Chemistry

chapter: - Creative Questions

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Questions:

Generic 2

5 x 2 = 10

Mention the characteristics of 'd' block elements.

Mention the characteristics of 'p' block elements

Mention the characteristics of 's' block elements.

Name the first and the last elements in the following periods (n) .
(i) n=:4
(ii) n = 5
(iii) n = 6
(iv) n = 7

Write the general electronic configuration of s,c ,p, d, and f block elements

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Answers Key:

Generic 2

5 x 2 = 10

These elements also show more than one oxidation state and form ionic, covalent and coordination compounds. They can form interstitial compounds and alloys which can also act as catalysts. These elements have high melting points and are good conductors of heat and electricity

The elements of p-block have high negative electron gain enthalpies. The ionisation energies are higher than that of s-block elements. They form mostly covalent compounds and shows more than one oxidation states in their compounds

These are soft metals and possess low melting and boiling points with low ionisation enthalpies. They are highly reactive and form ionic compounds. They are highly electropositive in nature and most of the elements imparts colour to the flame.