The Chemistry Involved in the Titrimetric Exercises NEET Questions

Organic Chemistry - Principles of Practical Chemistry
The Chemistry Involved in the Titrimetric Exercises

The Chemistry Involved in the Titrimetric Exercises MCQ Questions


13.
Why is oxalic acid dihydrate, not anhydrous oxalic acid, used as a primary standard?
A.
Dihydrate has lower equivalent weight
B.
Anhydrous form is coloured
C.
Dihydrate dissolves more slowly
D.
Anhydrous form is hygroscopic; dihydrate has definite composition
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ANSWER :
D. Anhydrous form is hygroscopic; dihydrate has definite composition
14.
Number of moles in 250 mL of 0.1 M HCl is:
A.
0.025 mol
B.
0.1 mol
C.
0.25 mol
D.
0.0025 mol
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ANSWER :
A. 0.025 mol
15.
Equation N1V1 = N2V2 is valid because:
A.
Volumes always equal each other
B.
Equivalents of acid equal equivalents of base at the equivalence point
C.
Indicator demands it
D.
Density is constant
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ANSWER :
B. Equivalents of acid equal equivalents of base at the equivalence point
16.
Which apparatus is used to deliver a measured variable volume of a solution?
A.
Volumetric flask
B.
Pipette
C.
Burette
D.
Reagent bottle
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ANSWER :
C. Burette
17.
A pipette is used to:
A.
Measure mass of liquid
B.
Determine pH
C.
Deliver any variable volume
D.
Deliver a fixed accurate volume
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ANSWER :
D. Deliver a fixed accurate volume
18.
A volumetric flask is used to:
A.
Distill liquids
B.
Prepare a solution of accurately known volume
C.
Heat a solution
D.
Filter solid impurities
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ANSWER :
B. Prepare a solution of accurately known volume
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