Question

Why are halogens coloured?

Solution

Almost all halogens are coloured. This is because halogens absorb radiations in the visible region. This results in the excitation of valence electrons to a higher energy level. Since the amount of energy required for excitation differs for each halogen, each halogen displays a different colour

Some More Questions From The p-Block Elements Chapter

Why are pentahalides more covalent than trihalides?

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The P-Block Elements

Why are halogens coloured?

Some More Questions From The p-Block Elements Chapter

Why are pentahalides more covalent than trihalides?

Why is BiH₃ the strongest reducing agent amongst all the hydrides of Group 15 elements?

Why is N₂ less reactive at room temperature?

Mention the conditions required to maximise the yield of ammonia.

What is the covalency of nitrogen in N₂O₅?

Bond angle in PH₄⁺ is higher than that in PH₃. Why?

Write a balanced equation for the hydrolytic reactions PCl₅ in heavy water.

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NCERT Sample Papers

Entrance Exams Preparation

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The P-Block Elements

Why are halogens coloured?

Some More Questions From The p-Block Elements Chapter

Why are pentahalides more covalent than trihalides?

Why is BiH3 the strongest reducing agent amongst all the hydrides of Group 15 elements?

Why is N2 less reactive at room temperature?

Mention the conditions required to maximise the yield of ammonia.

What is the covalency of nitrogen in N2O5?

Bond angle in PH4+ is higher than that in PH3. Why?

Write a balanced equation for the hydrolytic reactions PCl5 in heavy water.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Why is BiH₃ the strongest reducing agent amongst all the hydrides of Group 15 elements?

Why is N₂ less reactive at room temperature?

What is the covalency of nitrogen in N₂O₅?

Bond angle in PH₄⁺ is higher than that in PH₃. Why?

Write a balanced equation for the hydrolytic reactions PCl₅ in heavy water.