CBSE Term 1 : Class 12th Chemistry Modal Paper 1

In this blog, we will provide you with CBSE Term 1 Class 12th Modal Paper that will help you in the examination.

Class 12th Chemistry Term 1

Instructions

1. This paper has 35 Questions.
2. All questions are compulsory, each question carries 1 mark.
3. Answer the questions as per the given instructions.

Time: 90 Minutes

Max. Marks: 35

Multiple Choice Questions

Directions: Question No. 1-20 Each of the questions has four options out of which only one is correct. Select the correct option as your answer.

1. Which of the following is an example of a network solid?

1. SO₂ (Solid)
2. I₂
3. Diamond
4. H₂O ( Ice)

2. P_A and P_B are the vapour pressure of pure liquid components A and B respectively of an ideal binary solution. If X_A represents the mole fraction of component A, the total pressure of the solution will be

1. P_A+X_A(P_B-P_B)
2. P_A+X_A(P_A-P_A)
3. P_B+X_A(P_B-PA_B)
4. P_B+X_A(P_A-P_B)

3. Consider the following hydrides SbH₃, BiH₃, NH₃, PH₃, AsH₃. The strongest and weakest hydride respectively are

1. NH₃, PH₃
2. NH₃, BiH₃
3. PH₃, BiH₃
4. BiH₃, AsH₃

4. The alkane that gives only one monochloro product on chlorination with Cl₂ in presence of diffused sunlight is 

1. 2,2-dimethyl butane
2. neo-pentane
3. n-pentane
4. isopentane

Assertion-Reasoning MCQs

Direction In the following questions ( Q.No. 21-27) a statement of Assertion Choose the correct answer out of the following choices.

1. Both Assertion and Reason are correct statements and Reason is the correct explanation of the Assertion.
2. Both Assertion and Reason are correct statements, but the reason is not the correct explanation of the assertion.
3. The assertion is correct, but the reason is incorrect statement.
4. The assertion is incorrect but the reason is the correct statement.