Enthalpy of Neutralization of Strong Acid and Strong Base NEET Questions

Organic Chemistry - Principles of Practical Chemistry

Enthalpy of Neutralization of Strong Acid and Strong Base MCQ Questions


13.
In a neutralization between H₂SO₄ and NaOH, what is the enthalpy of neutralization per mole of H₂O formed?
A.
-114.6 kJ/mol
B.
-57.3 kJ/mol
C.
-28.65 kJ/mol
D.
0 kJ/mol
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ANSWER :
B. -57.3 kJ/mol
14.
The enthalpy of neutralization of a weak acid with strong base is lower than that of strong acid-strong base due to
A.
More heat evolved
B.
Ionization of weak acid consumes energy
C.
Higher dissociation
D.
No energy change
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ANSWER :
B. Ionization of weak acid consumes energy
15.
Enthalpy change in neutralization reaction is
A.
Always negative
B.
Always positive
C.
Zero
D.
Can be positive or negative
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ANSWER :
A. Always negative
16.
Which one among the following will not have enthalpy change close to -57.3 kJ/mol?
A.
HCl + KOH
B.
CH₃COOH + KOH
C.
HNO₃ + NaOH
D.
HCl + NaOH
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ANSWER :
B. CH₃COOH + KOH
17.
Why does enthalpy of neutralization vary in weak acid-strong base reactions?
A.
Weak acid gives more heat
B.
Partial dissociation requires energy
C.
Complete dissociation of acid
D.
None of these
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ANSWER :
B. Partial dissociation requires energy
18.
Which of the following acids will give highest enthalpy of neutralization with NaOH?
A.
HF
B.
HNO₃
C.
HCOOH
D.
CH₃COOH
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ANSWER :
B. HNO₃