CBSE Class 12 Electrical Machines Question Paper 2019 with Answer Key (February 22)

CBSE Class 12 Electrical Machines Question Paper 2019 with Answer Key Set 4 is available for download. The exam was conducted by the Central Board of Secondary Education on February 22, 2019 in the Morning Session 10:30 AM to 12:30 PM. The medium of paper was English & Hindi. The question paper comprised a total of 28 questions.

CBSE Class 12 Electrical Machines Question Paper 2019 with Answer Key (February 22)

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CBSE Class 12 Previous Year Question Papers

CBSE Question Paper 2020	CBSE Question Paper 2019	CBSE Question Paper 2018
CBSE Question Paper 2017	CBSE Question Paper 2016	CBSE Question Paper 2015

CBSE CLASS XII Questions

1.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

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2.
Write mechanism of acid dehydration of ethanol to ethene.

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3.
Under what condition can a bimolecular reaction become kinetically first order?

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4.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

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5.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

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

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CBSE Class 12 Electrical Machines Question Paper 2019 with Answer Key (February 22)

CBSE Class 12 Electrical Machines Question Paper 2019 with Answer Key (February 22)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

2.
Write mechanism of acid dehydration of ethanol to ethene.

3.
Under what condition can a bimolecular reaction become kinetically first order?

4.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

5.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

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

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CBSE Class 12 Electrical Machines Question Paper 2019 with Answer Key (February 22)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

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

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

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

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

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

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1.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

2.
Write mechanism of acid dehydration of ethanol to ethene.

3.
Under what condition can a bimolecular reaction become kinetically first order?

4.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

5.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

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