The Chemistry Involved in the Titrimetric Exercises NEET Questions

Organic Chemistry - Principles of Practical Chemistry

The Chemistry Involved in the Titrimetric Exercises MCQ Questions


7.
In permanganate titrations, why is dilute sulfuric acid preferred over hydrochloric acid?

NEET - 2018

A.
HCl is oxidized by KMnO₄
B.
HCl is too weak
C.
HCl forms precipitate
D.
KMnO₄ decomposes in HCl
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ANSWER :
A. HCl is oxidized by KMnO₄
8.
Which of the following is used as a self-indicator in redox titrations?
A.
KMnO₄
B.
K₂Cr₂O₇
C.
I₂
D.
H₂O₂
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ANSWER :
A. KMnO₄
9.
What is the normality of a solution containing 49 g of H₂SO₄ per liter?
A.
1 N
B.
2 N
C.
0.5 N
D.
0.1 N
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ANSWER :
B. 2 N
10.
In iodometry, the liberated iodine is titrated against?
A.
Potassium dichromate
B.
Potassium iodide
C.
Oxalic acid
D.
Sodium thiosulphate
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ANSWER :
D. Sodium thiosulphate
11.
Which of the following is a redox indicator?
A.
Bromophenol blue
B.
Phenolphthalein
C.
Litmus
D.
Ferroin
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ANSWER :
D. Ferroin
12.
Which compound is used as a primary standard for acid-base titration?
A.
NaCl
B.
HCl
C.
NaOH
D.
Oxalic acid
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ANSWER :
D. Oxalic acid