CBSE Class 12 Geography (Urdu) Question Paper 2018 with Answer Key (March 17, Set 1

CBSE Class 12 Geography (Urdu) Question Paper 2018 with Answer Key Set 1 - 255/1 is available for download. The exam was conducted by the Central Board of Secondary Education on March 17, 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 Geography (Urdu) paper was of Easy level. The question paper comprised a total of 22 questions.

CBSE Class 12 Geography (Urdu) Set 1 - 255/1 Question Paper 2018 with Answer Key (March 17)

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CBSE Class 12 Previous Year Question Papers

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CBSE CLASS XII Questions

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

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

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3.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

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

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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 Geography (Urdu) Question Paper 2018 with Answer Key (March 17, Set 1 - 255/1)

CBSE Class 12 Geography (Urdu) Set 1 - 255/1 Question Paper 2018 with Answer Key (March 17)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

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

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

3.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

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

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 Geography (Urdu) Set 1 - 255/1 Question Paper 2018 with Answer Key (March 17)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

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

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

3.Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

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

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

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

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

3.
Give structures of A, B and C: $CH_3Cl \xrightarrow{KCN}$ A $\xrightarrow{LiAlH_4}$ B $\xrightarrow{CHCl_3 + \text{alc. } KOH, \Delta}$ C

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

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