CBSE Class 12 Informatics Practices Question Paper 2016 with Answer Key (March 26)

CBSE Class 12 Informatics Practices Question Paper 2016 with Answer Key Set 4 is available for download. The exam was conducted by the Central Board of Secondary Education on March 26, 2016 in the Morning Session 10:30 AM to 1:30 PM. The medium of paper was English. The question paper comprised a total of 7 questions.

CBSE Class 12 Informatics Practices Question Paper 2016 with Answer Key (March 26)

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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.
What are reducing sugars?

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3.
Why are magnesium blocks attached to iron water pipelines?

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4.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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

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6.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

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CBSE Class 12 Informatics Practices Question Paper 2016 with Answer Key (March 26)

CBSE Class 12 Informatics Practices Question Paper 2016 with Answer Key (March 26)

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.
What are reducing sugars?

3.
Why are magnesium blocks attached to iron water pipelines?

4.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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

6.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?

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CBSE Class 12 Informatics Practices Question Paper 2016 with Answer Key (March 26)

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.What are reducing sugars?

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

4.Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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

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

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.
What are reducing sugars?

3.
Why are magnesium blocks attached to iron water pipelines?

4.
Predict the alkene formed by dehydrohalogenation of 1-Bromo-1-methylcyclohexane.

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

6.
Though chlorine shows strong $-I$ effect, why is it ortho/para directing?