CBSE Class 12 Beauty And Hair Question Paper 2018 with Answer Key (March 10)

CBSE Class 12 Beauty And Hair Question Paper 2018 with Answer Key Set 4 is available for download. The exam was conducted by the Central Board of Secondary Education on March 10, 2018 in the Morning 10:30 AM to 1:00 PM. The medium of paper was English & Hindi. The question paper comprised a total of 35 questions.

CBSE Class 12 Beauty And Hair Question Paper 2018 with Answer Key (March 10)

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CBSE Class 12 Previous Year Question Papers

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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.
What happens when: (a) Propanenitrile is treated with phenyl magnesium bromide followed by hydrolysis? (b) p-Fluorotoluene is treated with $CrO_3$ in presence of acetic anhydride followed by hydrolysis with aqueous acid? (c) Phthalic acid is treated with $NH_3$ followed by heating?

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3.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

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4.
Under what condition can a bimolecular reaction become kinetically first order?

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5.
Why is o-nitrophenol more acidic than o-methoxyphenol?

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

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CBSE Class 12 Beauty And Hair Question Paper 2018 with Answer Key (March 10)

CBSE Class 12 Beauty And Hair Question Paper 2018 with Answer Key (March 10)

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.
What happens when: (a) Propanenitrile is treated with phenyl magnesium bromide followed by hydrolysis? (b) p-Fluorotoluene is treated with $CrO_3$ in presence of acetic anhydride followed by hydrolysis with aqueous acid? (c) Phthalic acid is treated with $NH_3$ followed by heating?

3.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

4.
Under what condition can a bimolecular reaction become kinetically first order?

5.
Why is o-nitrophenol more acidic than o-methoxyphenol?

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

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CBSE Class 12 Beauty And Hair Question Paper 2018 with Answer Key (March 10)

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.What happens when: (a) Propanenitrile is treated with phenyl magnesium bromide followed by hydrolysis? (b) p-Fluorotoluene is treated with $CrO_3$ in presence of acetic anhydride followed by hydrolysis with aqueous acid? (c) Phthalic acid is treated with $NH_3$ followed by heating?

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

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

5.Why is o-nitrophenol more acidic than o-methoxyphenol?

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

Comments

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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.
What happens when: (a) Propanenitrile is treated with phenyl magnesium bromide followed by hydrolysis? (b) p-Fluorotoluene is treated with $CrO_3$ in presence of acetic anhydride followed by hydrolysis with aqueous acid? (c) Phthalic acid is treated with $NH_3$ followed by heating?

3.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

4.
Under what condition can a bimolecular reaction become kinetically first order?

5.
Why is o-nitrophenol more acidic than o-methoxyphenol?

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