CBSE Class 12 Business Studies Question Paper 2019 with Answer Key (March 14, Set 3

CBSE Class 12 Business Studies Question Paper 2019 with Answer Key Set 3 - 66/5/3 is available for download. The exam was conducted by the Central Board of Secondary Education on March 14, 2019 in the Morning Session 10:30 AM to 1:30 PM. The medium of paper was English & Hindi. In terms of difficulty level, CBSE Class 12 Business Studies paper was of Moderate level. The question paper comprised a total of 25 questions divided among 5 sections.

CBSE Class 12 Business Studies Set 3 - 66/5/3 Question Paper 2019 with Answer Key (March 14)

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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.
Write mechanism of acid dehydration of ethanol to ethene.

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2.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

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3.
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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4.
Why is o-nitrophenol more acidic than o-methoxyphenol?

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5.
Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

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6.
What are reducing sugars?

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CBSE Class 12 Business Studies Question Paper 2019 with Answer Key (March 14, Set 3 - 66/5/3)

CBSE Class 12 Business Studies Set 3 - 66/5/3 Question Paper 2019 with Answer Key (March 14)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.
Write mechanism of acid dehydration of ethanol to ethene.

2.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

3.
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.

4.
Why is o-nitrophenol more acidic than o-methoxyphenol?

5.
Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

6.
What are reducing sugars?

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CBSE Class 12 Business Studies Set 3 - 66/5/3 Question Paper 2019 with Answer Key (March 14)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

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

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

3.61 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.

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

5.Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

6.What are reducing sugars?

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1.
Write mechanism of acid dehydration of ethanol to ethene.

2.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

3.
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.

4.
Why is o-nitrophenol more acidic than o-methoxyphenol?

5.
Give structures of A, B and C: Aniline $\xrightarrow{Br_2/H_2O}$ A $\xrightarrow{NaNO_2+HCl, 0-5^\circ C}$ B $\xrightarrow{H_3PO_2+H_2O}$ C

6.
What are reducing sugars?