Ionization Enthalpy NEET Questions

Inorganic Chemistry - Classification of Elements and Periodicity in Properties

Ionization Enthalpy MCQ Questions


13.
The ionization enthalpy of hydrogen is:
A.
13.6 eV
B.
10.2 eV
C.
15.8 eV
D.
12.1 eV
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ANSWER :
A. 13.6 eV
14.
Which of the following has the highest second ionization enthalpy?
A.
Li
B.
Be
C.
B
D.
C
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ANSWER :
A. Li
15.
The first ionization enthalpy decreases down a group due to:
A.
Increasing nuclear charge
B.
Increasing atomic size
C.
Decreasing shielding effect
D.
Increasing electron affinity
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ANSWER :
B. Increasing atomic size
16.
Which element has the lowest first ionization enthalpy in the periodic table?
A.
Cesium
B.
Francium
C.
Rubidium
D.
Potassium
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ANSWER :
B. Francium
17.
The first ionization enthalpy of oxygen is lower than that of nitrogen because:
A.
Oxygen has a higher atomic number
B.
Nitrogen has a half-filled p-orbital
C.
Oxygen has a smaller atomic radius
D.
Nitrogen has a higher electronegativity
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ANSWER :
B. Nitrogen has a half-filled p-orbital
18.
Which of the following has the highest first ionization enthalpy?
A.
Carbon
B.
Nitrogen
C.
Oxygen
D.
Fluorine
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ANSWER :
D. Fluorine