Atomic and Physical Properties of Group 17 Elements

IMPORTANT

Atomic and Physical Properties of Group 17 Elements: Overview

This topic covers concepts, such as, Atomic and Physical Properties of Group 17 Elements, Electronic Configuration of Halogens, Colors of Halogens & Enthalpy of Dissociation of Halogen Molecules etc.

Important Questions on Atomic and Physical Properties of Group 17 Elements

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Which amongst the following halogen has the highest hydration enthalpy?

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Discuss briefly the hydration enthalpy of halogens. Mention the order of hydration enthalpy.

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_____ has the lowest value of ionisation energy among the halogens.

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The ionisation enthalpy of _____ is highest among the halogens.

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Fluorine has the highest ionisation enthalpy among the halogens. Give reason. 

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Discuss briefly about the variation of ionisation enthalpy in halogens. 

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The halogen acid which has highest bond dissociation enthalpy is _____.(HF/HI)

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Iodine vapours are violet in colour because the molecules of iodine:

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The negative value of electron gain enthalpy is less for fluorine than for chlorine.

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Which among the following lithium halides is more covalent in nature?

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Why does fluorine have exceptionally smaller bond dissociation enthalpy?

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The ionisation energies of halogens are _____.

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Give reasons :

Fluoride ion has higher hydration enthalpy than chloride ion.

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Fluorine does not show positive oxidation state due to absence of:


 

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What are the trends in ionization enthalpy and in electronegativity of group 17 elements?
 

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Bromine has the highest negative electron gain enthalpy as compared to other elements of 4th  period. Explain.

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The halogen with highest negative electron gain enthalpy is ? 

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Affinity for hydrogen decreases in the group from fluorine to iodine. Which of the halogen acids should have highest bond dissociation enthalpy?

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Bond energy of halogens follows the order-