CBSE Class 12 Web Applications Question Paper 2019 with Answer Key (February 27)

CBSE Class 12 Web Applications 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 27, 2019 in the Morning Session 10:30 AM to 1:00 PM. The medium of paper was English & Hindi.The question paper comprised a total of 31 questions divided among 2 sections.

CBSE Class 12 Web Applications Set 4 Question Paper 2019 with Answer Key (February 27)

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

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2.
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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3.
Why are magnesium blocks attached to iron water pipelines?

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4.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

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5.
Under what condition can a bimolecular reaction become kinetically first order?

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6.
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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CBSE Class 12 Web Applications Question Paper 2019 with Answer Key (February 27)

CBSE Class 12 Web Applications Set 4 Question Paper 2019 with Answer Key (February 27)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

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

2.
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

3.
Why are magnesium blocks attached to iron water pipelines?

4.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

5.
Under what condition can a bimolecular reaction become kinetically first order?

6.
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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CBSE Class 12 Web Applications Set 4 Question Paper 2019 with Answer Key (February 27)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

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

2.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

3.Why are magnesium blocks attached to iron water pipelines?

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

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

6.61 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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1.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

2.
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

3.
Why are magnesium blocks attached to iron water pipelines?

4.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

5.
Under what condition can a bimolecular reaction become kinetically first order?

6.
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.