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Ionic Radii and Ionisation Enthalpy (Group 2)

Explain why H...

Question

Explain why Halogens are coloured.

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Solution

As the emission energy of halogen falls in the visible region they are coloured.

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Explain why interhalogen compounds are more reactive than halogen?

Q. (a) Complete the following chemical equation :

C u + H N O_{3} (d i l .) \to

X e F_{4} + O_{2} F_{2} \to

(b) Explain the following observations :

(i) Phosphorus has a grater tendency for catenation than nitrogen.
(ii) Oxygen is a gas but sulphur a solid.
(iii) The halogens are coloured. Why?

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Q. Why are halogens strong oxidising agents?

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