Electron Gain Enthalpy NEET Questions

Inorganic Chemistry - Classification of Elements and Periodicity in Properties

Electron Gain Enthalpy MCQ Questions


1.
Which element has the most negative electron gain enthalpy?

NEET - 2010

A.
Fluorine
B.
Chlorine
C.
Oxygen
D.
Sulfur
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ANSWER :
B. Chlorine
2.
What is the general trend of electron gain enthalpy across a period?
A.
Increases (more negative)
B.
Decreases (less negative)
C.
Remains constant
D.
Shows no definite trend
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ANSWER :
A. Increases (more negative)
3.
Among the following, which has the least negative electron gain enthalpy?
A.
Phosphorus
B.
Sulfur
C.
Fluorine
D.
Chlorine
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ANSWER :
A. Phosphorus
4.
Which noble gas has a positive electron gain enthalpy?
A.
Neon
B.
Argon
C.
Krypton
D.
Xenon
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ANSWER :
B. Argon
5.
What is the electron gain enthalpy of sodium ion (Na⁺) if the first ionization energy of Na is 5.1 eV?

NEET - 2011

A.
–5.1 eV
B.
–10.2 eV
C.
+2.55 eV
D.
+10.2 eV
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ANSWER :
A. –5.1 eV
6.
Which of the following has the most negative electron gain enthalpy?
A.
Fluorine
B.
Bromine
C.
Sulfur
D.
Argon
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ANSWER :
A. Fluorine