JEE-MAIN SERIES Chemistry
Volumetric Analysis
4 previous year questions.
Volume: 4 Ques
Yield: Medium
High-Yield Trend
2
2026 2
2021 Chapter Questions 4 MCQs
01
PYQ 2021
medium
chemistry ID: jee-main
10.0 mL of Na₂CO₃ solution is titrated against 0.2 M HCl solution. The following titre values were obtained in 5 readings: 4.8 mL, 4.9 mL, 5.0 mL, 5.0 mL and 5.0 mL. Based on these readings, and convention of titrimetric estimation the concentration of Na₂CO₃ solution is ________ mM. (Round off to the Nearest Integer).
02
PYQ 2021
medium
chemistry ID: jee-main
0.4 g mixture of NaOH, Na CO and some inert impurities was first titrated with N/10 HCl using phenolphthalein as an indicator, 17.5 mL of HCl was required at the end point. After this methyl orange was added and titrated. 1.5 mL of same HCl was required for the next end point. The weight percentage of Na CO in the mixture is _________
03
PYQ 2026
medium
chemistry ID: jee-main
Given below are two statements:
Statement I: Sodium dichromate and potassium dichromate are classified as primary standards in titrimetric analysis.
Statement II: Phenolphthalein is a weak base, therefore it dissociates in acidic medium.
Statement I: Sodium dichromate and potassium dichromate are classified as primary standards in titrimetric analysis.
Statement II: Phenolphthalein is a weak base, therefore it dissociates in acidic medium.
1
Both Statement I and Statement II are true
2
Both Statement I and Statement II are false
3
Statement I is true but Statement II is false
4
Statement I is false but Statement II is true
04
PYQ 2026
medium
chemistry ID: jee-main
A gas undergoes a process in which state variable changes from (1 atm, 60 mL, 27°C) to (P atm, 30 mL, 77°C). Then, is
1
3 atm
2
atm
3
atm
4
atm