CBSE Class 12 Dance Mohiniyattam Question Paper 2019 with Answer Key (February 16)

CBSE Class 12 Dance Mohiniyattam 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 16, 2019 in the Morning Session 10:30 AM to 1:30 PM. The medium of paper was English & Hindi. The question paper comprised a total of 6 questions.

CBSE Class 12 Dance Mohiniyattam Question Paper 2019 with Answer Key (February 16)

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

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4.
What are reducing sugars?

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5.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

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

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CBSE Class 12 Dance Mohiniyattam Question Paper 2019 with Answer Key (February 16)

CBSE Class 12 Dance Mohiniyattam Question Paper 2019 with Answer Key (February 16)

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

4.
What are reducing sugars?

5.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

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

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CBSE Class 12 Dance Mohiniyattam Question Paper 2019 with Answer Key (February 16)

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

4.What are reducing sugars?

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

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

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

4.
What are reducing sugars?

5.
Explain: (i) Presence of carbonyl group in glucose. (ii) Presence of five $-$OH groups attached to different carbon atoms.

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