CBSE Class 12 Hindustani Music (Vocal) Question Paper 2018 with Answer Key (March 12)

CBSE Class 12 Hindustani Music (Vocal) Question Paper 2018 with Answer Key Set 4 is available for download. The exam was conducted by the Central Board of Secondary Education on March 12, 2018 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 8 questions.

CBSE Class 12 Hindustani Music (Vocal) Question Paper 2018 with Answer Key (March 12)

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CBSE CLASS XII Questions

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

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2.
What are reducing sugars?

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

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4.
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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5.
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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6.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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CBSE Class 12 Hindustani Music (Vocal) Question Paper 2018 with Answer Key (March 12)

CBSE Class 12 Hindustani Music (Vocal) Question Paper 2018 with Answer Key (March 12)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

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

2.
What are reducing sugars?

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

4.
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.

5.
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.

6.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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CBSE Class 12 Hindustani Music (Vocal) Question Paper 2018 with Answer Key (March 12)

CBSE Class 12 Previous Year Question Papers

CBSE CLASS XII Questions

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

2.What are reducing sugars?

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

4.61 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.

5.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.

6.Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

Comments

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

2.
What are reducing sugars?

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

4.
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.

5.
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.

6.
Predict the alkene that would be formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.