Question

) Give reason for each of the following -:
(i) Ionic compounds have high melting point
(ii) Inert gases do not form ions
(iii) Ionisation potential increases across period from left to right
(iv) Alkali metals are good reducing agents

Answer 1

Answer:

iii option is correct for your question

Answer 2

Explanation:

1__Ionic compounds have high melting and boiling points because there is a strong electrostatic force of attraction between the oppositely charged ions and hence a large amount of energy is required to break the strong bonding force between ions.

2__Inert gases have already achieved octet that means their outermost shells are filled with electrons always so they do not tend to react with any element thereby as they do not react so they do not form ions..... Because they are already stable and for making own ions it would required more energy. that is not possible

3__Thus, on moving from left to right in a period, the tendency of atoms to lose electrons decreases. Hence, the ionization energy increases across the period. ... So each electron experiences a greater attraction to the nuclear region due to the increased nuclear positive charge.

4__Alkali metals are good reducing agents because alkali metals have one valence electron which they lose to attain stability. Hence, they themselves undergo oxidation causing reduction of others and are good reducing agents. They have a single electron that they want to get rid of and become a +1 cation.

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