Statement-1 : First electron gain enthal...

Statement-1 : First electron gain enthalpy is alway -ve for an element.
Statement-2 : Magnitude of electron gain enthalpy irregularly increases from left to right in a period.

A

Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.

B

Staterment-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.

C

Statement-1 is true, statement-2 is false.

D

Statement-1 is false, statement-2 is true.

Text Solution

Verified by Experts

The correct Answer is:

D

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The element with positive electron gain enthalpy is

Electron gain enthalpy is positive when:

Knowledge Check

Second electron gain enthalpy:

A

is always negative

B

is always positive

C

can be positive or negative

D

is always zero

The correct order of electron gain enthalpy is

A

`SgtSegtTegtO`

B

`TegtSegtSgtO`

C

`OgtSgtSegtTe`

D

`SgtOgtSegtTe`

Electron gain enthalpy will be positive in

A

`O^(-2)` is formed from `O^(-1)`

B

`O^(-1)` is formed from O

C

`S^(-1)` is formed from S

D

`Na^(-)` is formed from Na

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