CBSE Class 12 Economics (Urdu) Question Paper 2018 with Answer Key (March 26, Set 2

CBSE Class 12 Economics (Urdu) Question Paper 2018 with Answer Key Set 2 - 251/2 is available for download. The exam was conducted by the Central Board of Secondary Education on March 26, 2018 in the Morning Session 10:30 AM to 1:30 PM. The medium of paper was Urdu. In terms of difficulty level, CBSE Class 12 Economics (Urdu) paper was of Moderate level. The question paper comprised a total of 24 questions divided among 2 sections.

CBSE Class 12 Economics (Urdu) Set 2 - 251/2 Question Paper 2018 with Answer Key (March 26)

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CBSE CLASS XII Questions

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

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2.
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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3.
What are reducing sugars?

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4.
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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5.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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6.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr

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CBSE Class 12 Economics (Urdu) Question Paper 2018 with Answer Key (March 26, Set 2 - 251/2)

CBSE Class 12 Economics (Urdu) Set 2 - 251/2 Question Paper 2018 with Answer Key (March 26)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

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

2.
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.

3.
What are reducing sugars?

4.
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

5.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

6.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr

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CBSE Class 12 Economics (Urdu) Set 2 - 251/2 Question Paper 2018 with Answer Key (March 26)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

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

2.61 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.

3.What are reducing sugars?

4.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

5.Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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

Comments

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

2.
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.

3.
What are reducing sugars?

4.
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

5.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

6.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr