CBSE Class 12 Economics Question Paper 2015 with Answer Key (March 20, Set 1

CBSE Class 12 Economics Question Paper 2015 with Answer Key Set 1 - 58/1 is available for download. The exam was conducted by the Central Board of Secondary Education on March 20, 2015 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 Economics paper was of Easy level. The question paper comprised a total of 29 questions divided among 2 sections.

CBSE Class 12 Economics Set 1 - 58/1 Question Paper 2015 with Answer Key (March 20)

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CBSE CLASS XII Questions

1.
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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2.
Write mechanism of acid dehydration of ethanol to ethene.

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3.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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4.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

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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 Economics Question Paper 2015 with Answer Key (March 20, Set 1 - 58/1)

CBSE Class 12 Economics Set 1 - 58/1 Question Paper 2015 with Answer Key (March 20)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.
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.

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

3.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

4.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

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 Economics Set 1 - 58/1 Question Paper 2015 with Answer Key (March 20)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.61 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.

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

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

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

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.
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.

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

3.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

4.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

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?