CBSE Class 12 Biology Question Paper 2023 with Answer Key (March 16, Set 3- 57/3/3)

CBSE Class 12 Biology Question Paper 2023 with Answer Key (Set 3- 57/3/3) is available for download. The exam was conducted by the Central Board of Secondary Education on March 16, 2023 in the Morning Session 10:30 AM to 1:30 PM. The medium of paper was English & Hindi. According to initial student reaction, the CBSE Class 12 Biology Paper was rated as Moderate in difficulty level. The question paper comprised a total of 33 questions divided among 5 sections.

CBSE Class 12 Biology (Set 3- 57/3/3) Question Paper 2023 with Answer Key (March 16)

CBSE Class 12 Biology Question Paper 2023 PDF	CBSE Class 12 Biology Answer Key 2023 PDF	Detailed Solutions
Download PDF	Download PDF	Download PDF

CBSE Class 12 Previous Year Question Papers

CBSE Class 12 Question Paper 2022	CBSE Class 12 Question Paper 2020	CBSE Class 12 Question Paper 2019
CBSE Class 12 Question Paper 2018	CBSE Class 12 Question Paper 2017	CBSE Class 12 Question Paper 2016

CBSE CLASS XII Questions

1.
Under what condition can a bimolecular reaction become kinetically first order?

View Solution

2.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr

View Solution

3.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

View Solution

4.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

View Solution

5.
Why are magnesium blocks attached to iron water pipelines?

View Solution

6.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

View Solution

CBSE Class 12 Biology Question Paper 2023 with Answer Key (March 16, Set 3- 57/3/3)

CBSE Class 12 Biology (Set 3- 57/3/3) Question Paper 2023 with Answer Key (March 16)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.
Under what condition can a bimolecular reaction become kinetically first order?

2.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr

3.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

4.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

5.
Why are magnesium blocks attached to iron water pipelines?

6.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

Comments

SUBSCRIBE TO OUR NEWS LETTER

CBSE Class 12 Biology (Set 3- 57/3/3) Question Paper 2023 with Answer Key (March 16)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.Under what condition can a bimolecular reaction become kinetically first order?

2.Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether (b) p-Hydroxyphenethyl alcohol + HBr

3.Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

4.Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

5.Why are magnesium blocks attached to iron water pipelines?

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

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Under what condition can a bimolecular reaction become kinetically first order?

2.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr

3.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

4.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

5.
Why are magnesium blocks attached to iron water pipelines?

6.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?