CBSE Term 2 Sample Question Paper for Class 12 – Chemistry
Sample Question papers for Chemistry of Class 12 Exam are important enough for students to practice answer writing style. Chemistry is one of the most popular subjects in CBSE Examination Board. Every student works a fear towards exams. The Sample Questionnaire appears to be a way to overcome that fear. Class 12 Exam syllabus is much longer. Model Q&A is created based on the complete syllabus. And based on this question and answer, the students get an idea of how they will prepare for the exam. Experts prepare this Sample Question paper according to the syllabus. Stay involved in the previous year question paper. Seeing the Q&A of it gives the students a special idea on the division of marks. These ideas increase students’ Class 12 in Chemistry.
CBSE Term 2 Sample Question Paper Class 12 Exam Chemistry
Board | Central Board of Secondary Education 2022 (CBSE Term 2) |
Class | 12th |
Subject | Chemistry |
SECTION A
1.) Arrange the following in the increasing order of their property indicated
(any 2):
a.) Benzoic acid, Phenol, Picric acid, Salicylic acid (pka values).
b.) Acetaldehyde, Acetone, Methyl tert butyl ketone (reactivity towards NH2OH).
c.) ethanol, ethanoic acid, benzoic acid (boiling point)
2.) Solutions of two electrolytes ‘A’ and ‘B’ are diluted. The Λm of ‘B’ increases 1.5 times while that of A increases 25 times. Which of the two is a strong electrolyte? Justify your answer. Graphically show the behavior of ‘A’ and ‘B’.
3.) Give reasons to support the answer:
a.) Presence of Alpha hydrogen in aldehydes and ketones is essential for aldol condensation.
b.) 3 –Hydroxy pentan-2-one shows positive Tollen’s test.
SECTION B
4.) Account for the following:
a.) Aniline cannot be prepared by the ammonolysis of chlorobenzene under normal conditions.
b.) N-ethylethanamine boils at 329.3K and butanamine boils at 350.8K, although both are isomeric in nature.
c.) Acylation of aniline is carried out in the presence of pyridine.
OR
4.) Convert the following:
a.) Phenol to N-phenylethanamide.
b.) Chloroethane to methanamine.
c.) Propanenitrile to ethanol.
Chemistry-SQP_Term2
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