CBSE Class 12 Chemistry Daily Practice Questions 13 October 2023

CBSE Class 12 Chemistry Daily Practice Questions 13 October 2023

CBSE Class 12 Chemistry Daily Practice Questions for 13 October 2023: Solving CBSE Class 12th Chemistry practice questions will help you in time management and accuracy. Students must solve the shared questions and check if they are preparing well for the CBSE class 12th examination or not. For better marks in the exam have a glance at CBSE Class 12 Chemistry Topic-Wise Weightage 2024 . CBSE Class 12 chemistry exam will comprise MCQs, very short answer questions, short answer questions, case-based questions, and long answer questions (LA).

Also Check | CBSE Class 12 Chemistry Daily Practice Questions 12 October 2023

CBSE Class 12 Chemistry Daily Practice Questions for 13 October 2023

Students can analyse their CBSE Class 12 Chemistry exam performance by solving daily practice questions shared below.

Question 1: Multiple-Choice Questions

Which of the following statements is not true about amorphous solids?

(A) On heating they may become crystalline at certain temperature.

(B) They may become crystalline on keeping for long time.

(C) Amorphous solids can be moulded by heating.

(D) They are anisotropic in nature.

Question 2: Very Short Answer Type Question

Which type of solid solution will result by mixing two solid components with  large differences in the sizes of their molecules?

Question 3: Short Answer Type Question

Why are rubbers called elastomers?

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Question 4: Case-Based Question

All chemical reactions involve interaction of atoms and molecules. A large number of atoms/molecules are present in a few gram of any chemical compound varying with their atomic/molecular masses. To handle such large number conveniently, the mole concept was introduced. All electrochemical cell reactions are also based on mole concept. For example, a 4.0 molar aqueous solution of NaCl is prepared and 500 mL of this solution is electrolysed. This leads to the evolution of chlorine gas at one of the electrode. The amount of products formed can be calculated by using mole concept.

The following questions are multiple choice questions. Choose the most appropriate answer:

(i) The total number of moles of chlorine gas evolved is

(a) 0.5

(b) 1.0

(c) 1.5

(d) 1.9

(ii) If cathode is a Hg electrode, then the maximum weight of amalgam formed from this solution is

(a) 300g

(b) 446 g

(c) 396 g

(d) 256 g

(iii) The total charge (coulomb) required for complete electrolysis is

(a) 186000

(b) 24125

(c) 48296

(d) 193000

(iv) In the electrolytes, the number of moles of electrons involved are

(a) 2

(b) 1

(c) 3

(d) 4

Question 5: Long Answer Type Question

Phenol and formaldehyde undergo condensation to give a polymer (A) which on heating with formaldehyde gives a thermosetting polymer (B). Name the polymers. Write the reactions involved in the formation of (A). What is the structural difference between the two polymers?

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