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  • In the following questions, a statement of assertion is followed by a statement of reason.Mark the correct option: Assertion:Electron gain enthalpy of oxygen is less negative th

In the following questions, a statement of assertion is followed by a statement of reason.Mark the correct option:

Assertion:Electron gain enthalpy of oxygen is less negative than sulphur.

Reason:Oxygen has small size and the oxygen atoms are of compact nature.

 

Option: 1

Both assertion and reason are true and reason is the correct explanation of assertion.

 


Option: 2

Both assertion and reason are true but reason is not the correct explanation of assertion.
 


Option: 3

Assertion is true but reason is false.

 


Option: 4

Both assertion and reason are false.


Answers (1)

best_answer

Correct option (a)

Electron gain enthalpy of oxygen is -141 while sulphur h -200, it is due to its small size than sulphur and because of the compact nature of oxygen atom, it has less negative electron gain enthalpy than sulphur. However, from sulphur onwards the value again become less negative upto polonium as -195 of selenium, -190 of tellurium and -174 of polonium.

 

Posted by

Deependra Verma

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