CBSE Class 12 Political Science Question Paper 2019 with Answer Key (March 19, Set 2

CBSE Class 12 Political Science Question Paper 2019 with Answer Key Set 2 - 59/1/2 is available for download. The exam was conducted by the Central Board of Secondary Education on March 19, 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 Political Science paper was of Moderate level. The question paper comprised a total of 27 questions divided among 5 sections.

CBSE Class 12 Political Science Set 2 - 59/1/2 Question Paper 2019 with Answer Key (March 19)

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CBSE Class 12 Previous Year Question Papers

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CBSE CLASS XII Questions

1.
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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2.
Under what condition can a bimolecular reaction become kinetically first order?

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3.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

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4.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

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5.
Why is o-nitrophenol more acidic than o-methoxyphenol?

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6.
Write mechanism of acid dehydration of ethanol to ethene.

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CBSE Class 12 Political Science Question Paper 2019 with Answer Key (March 19, Set 2 - 59/1/2)

CBSE Class 12 Political Science Set 2 - 59/1/2 Question Paper 2019 with Answer Key (March 19)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.
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

2.
Under what condition can a bimolecular reaction become kinetically first order?

3.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

4.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

5.
Why is o-nitrophenol more acidic than o-methoxyphenol?

6.
Write mechanism of acid dehydration of ethanol to ethene.

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CBSE Class 12 Political Science Set 2 - 59/1/2 Question Paper 2019 with Answer Key (March 19)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.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

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

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

4.For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

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

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

Comments

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1.
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

2.
Under what condition can a bimolecular reaction become kinetically first order?

3.
Which isomer of $C_4H_9Br$ is most reactive towards $S_N1$ reaction?

4.
For decomposition of $H_2O_2$ by $I^-$: Step I: $H_2O_2 + I^- \rightarrow H_2O + IO^-$ (slow). Step II: $H_2O_2 + IO^- \rightarrow H_2O + I^- + O_2$ (fast). (a) Write rate law. (b) Determine order w.r.t. $H_2O_2$ and $I^-$ and overall order. (c) Molecularity of Step II.

5.
Why is o-nitrophenol more acidic than o-methoxyphenol?

6.
Write mechanism of acid dehydration of ethanol to ethene.