CBSE Class 12 History Question Paper 2023 with Answer Key (March 29, Set 1- 253/5/1)

CBSE Class 12 2023 History Question Paper Set 1- 253/5/1 with Answer Key pdf is available for download here. The exam was conducted by the Central Board of Secondary Education on March 29, 2023 in the Morning Session 10:30 AM to 1:30 PM. The medium of paper was Urdu. According to initial student reaction, the CBSE Class 12 History paper was rated as Easy in difficulty level. The question paper comprised a total of 34 questions divided among 5 sections.

CBSE Class 12 History (Set 1- 253/5/1) Question Paper 2023 with Answer Key

CBSE Class 12 History Question Paper 2023 PDF	CBSE Class 12 History Answer Key 2023 PDF
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CBSE Class 12 Previous Year Question Papers

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CBSE CLASS XII Questions

5.
61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

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6.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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CBSE Class 12 History Question Paper 2023 with Answer Key (March 29, Set 1- 253/5/1)

CBSE Class 12 History (Set 1- 253/5/1) Question Paper 2023 with Answer Key

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

2.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

3.
Write mechanism of acid dehydration of ethanol to ethene.

4.
What are reducing sugars?

5.
61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

6.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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CBSE Class 12 History (Set 1- 253/5/1) Question Paper 2023 with Answer Key

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

2.Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

3.Write mechanism of acid dehydration of ethanol to ethene.

4.What are reducing sugars?

5.61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

6.Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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1.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

2.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

3.
Write mechanism of acid dehydration of ethanol to ethene.

4.
What are reducing sugars?

5.
61 g benzoic acid (M = 122 g mol$^{-1}$) dissolved in 500 g benzene. Vapour pressure of pure benzene = 66 torr. Assume complete dimerisation. Calculate vapour pressure of solution.

6.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.