Solutions
147 CBSE Class 12 Chemistry previous year questions (PYQs) from 4 papers, 2023 to 2026, with answers and worked solutions.
About this chapter
- Difficulty: 43 easy · 85 moderate · 19 hard.
- Most-asked subtopics: Colligative Properties and Determination of Molar Mass (57), Ideal and Non-ideal Solutions (37), Abnormal Molar Masses (29).
- Updated 13 September 2026.
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#1ModerateColligative Properties and Determination of Molar Mass
#2ModerateColligative Properties and Determination of Molar Mass
#3ModerateColligative Properties and Determination of Molar Mass
#4ModerateIdeal and Non-ideal Solutions
For questions number 13 to 16, two statements are given – one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below :#5ModerateIdeal and Non-ideal Solutions
#6EasyColligative Properties and Determination of Molar Mass
#7EasyIdeal and Non-ideal Solutions
For questions number 13 to 16, two statements are given – one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below :#8ModerateIdeal and Non-ideal Solutions
#9ModerateIdeal and Non-ideal Solutions
#10ModerateColligative Properties and Determination of Molar Mass
#11EasyIdeal and Non-ideal Solutions
#12ModerateVapour Pressure of Liquid Solutions
#13HardAbnormal Molar Masses
#14ModerateSolubility
#15ModerateSolubility
#16ModerateColligative Properties and Determination of Molar Mass
#17ModerateIdeal and Non-ideal Solutions
#18ModerateIdeal and Non-ideal Solutions
#19ModerateColligative Properties and Determination of Molar Mass
#20EasySolubility
For Questions number 13 to 16, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below.#21ModerateIdeal and Non-ideal Solutions
#22EasyColligative Properties and Determination of Molar Mass
#23ModerateVapour Pressure of Liquid Solutions
For Questions number 13 to 16, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below.#24EasyIdeal and Non-ideal Solutions
#25EasyAbnormal Molar Masses
#26EasyAbnormal Molar Masses
#27ModerateColligative Properties and Determination of Molar Mass
#28ModerateColligative Properties and Determination of Molar Mass
#29ModerateIdeal and Non-ideal Solutions
For Questions number 13 to 16, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below.#30ModerateIdeal and Non-ideal Solutions
For Questions number 13 to 16, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below.#31EasyIdeal and Non-ideal Solutions
#32ModerateColligative Properties and Determination of Molar Mass
#33EasyIdeal and Non-ideal Solutions
#34ModerateColligative Properties and Determination of Molar Mass
#35ModerateIdeal and Non-ideal Solutions
#36ModerateIdeal and Non-ideal Solutions
For Questions number 13 to 16, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below.#37ModerateAbnormal Molar Masses
#38ModerateColligative Properties and Determination of Molar Mass
For Questions number 13 to 16, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (A), (B), (C) and (D) as given below.#39EasyAbnormal Molar Masses
#40ModerateColligative Properties and Determination of Molar Mass
For Questions number 15 to 18, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.#41EasyAbnormal Molar Masses
#42ModerateColligative Properties and Determination of Molar Mass
For Questions number 15 to 18, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.#43ModerateIdeal and Non-ideal Solutions
#44ModerateColligative Properties and Determination of Molar Mass
Given below are two statements labelled as Assertion (A) and Reason (R). Select the most appropriate answer from the options given below :#45ModerateAbnormal Molar Masses
#46ModerateColligative Properties and Determination of Molar Mass
#47EasyIdeal and Non-ideal Solutions
#48EasyColligative Properties and Determination of Molar Mass
#49ModerateIdeal and Non-ideal Solutions
#50EasySolubility
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