CBSE Class 12 Accountancy Question Paper 2016 with Answer Key (March 17, Set 3

CBSE Class 12 Accountancy Question Paper 2016 with Answer Key Set 3 - 67/1/3 is available for download. The exam was conducted by the Central Board of Secondary Education on March 17, 2016 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 Accountancy paper was of Moderate level. The question paper comprised a total of 23 questions divided among 2 sections.

CBSE Class 12 Accountancy Set 3 - 67/1/3 Question Paper 2016 with Answer Key (March 17)

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CBSE CLASS XII Questions

1.
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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2.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr

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3.
Write mechanism of acid dehydration of ethanol to ethene.

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4.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

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

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6.
Why are magnesium blocks attached to iron water pipelines?

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CBSE Class 12 Accountancy Question Paper 2016 with Answer Key (March 17, Set 3 - 67/1/3)

CBSE Class 12 Accountancy Set 3 - 67/1/3 Question Paper 2016 with Answer Key (March 17)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.
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.

2.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr

3.
Write mechanism of acid dehydration of ethanol to ethene.

4.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

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

6.
Why are magnesium blocks attached to iron water pipelines?

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CBSE Class 12 Accountancy Set 3 - 67/1/3 Question Paper 2016 with Answer Key (March 17)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

1.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.

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

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

4.Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

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

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

Comments

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1.
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.

2.
Draw the structures of major products: (a) Chlorobenzene + $CH_3Cl$ / Na, dry ether
(b) p-Hydroxyphenethyl alcohol + HBr

3.
Write mechanism of acid dehydration of ethanol to ethene.

4.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

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

6.
Why are magnesium blocks attached to iron water pipelines?