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Tamil Nadu Board of Secondary EducationHSC Science Class 11

HSC Science Class 11 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Chemistry

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Chemistry
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Which of the following species does not acts as a nucleophile?

[12] Basic Concept of Organic Reactions
Chapter: [12] Basic Concept of Organic Reactions
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The geometrical shape of carbocation is ______.

[12] Basic Concept of Organic Reactions
Chapter: [12] Basic Concept of Organic Reactions
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Write a short note on resonance.

[12] Basic Concept of Organic Reactions
Chapter: [12] Basic Concept of Organic Reactions
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Write a short note on hyperconjucation.

[12] Basic Concept of Organic Reactions
Chapter: [12] Basic Concept of Organic Reactions
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What is electrophiles? Give a suitable example.

[12] Basic Concept of Organic Reactions
Chapter: [12] Basic Concept of Organic Reactions
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What is nucleophiles? Give a suitable example.

[12] Basic Concept of Organic Reactions
Chapter: [12] Basic Concept of Organic Reactions
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Show the heterolysis of a covalent bond by using curved arrow notation and complete the following equation. Identify the nucelophile.

CH3 – Br + KOH →

[12] Basic Concept of Organic Reactions
Chapter: [12] Basic Concept of Organic Reactions
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Show the heterolysis of a covalent bond by using curved arrow notation and complete the following equation. Identify the nucelophile.

\[\ce{CH3 – O – CH3 + HI →}\]

[12] Basic Concept of Organic Reactions
Chapter: [12] Basic Concept of Organic Reactions
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Explain inductive effect with suitable example.

[12] Basic Concept of Organic Reactions
Chapter: [12] Basic Concept of Organic Reactions
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Explain the electromeric effect.

[12] Basic Concept of Organic Reactions
Chapter: [12] Basic Concept of Organic Reactions
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Give example for the following type of organic reaction.

β - elimination

[12] Basic Concept of Organic Reactions
Chapter: [12] Basic Concept of Organic Reactions
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The correct statement regarding the comparison of staggered and eclipsed conformations of ethane, is ______.

[13] Hydrocarbons
Chapter: [13] Hydrocarbons
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The C – H bond and C – C bond in ethane are formed by which of the following types of overlap.

[13] Hydrocarbons
Chapter: [13] Hydrocarbons
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The major product formed when 2 – bromo – 2 – methyl butane is refluxed with ethanolic KOH is ______.

[13] Hydrocarbons
Chapter: [13] Hydrocarbons
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In which of the following molecules, all atoms are co-planar

[13] Hydrocarbons
Chapter: [13] Hydrocarbons
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Write a balanced equation for the reaction between KO2 and water.

[5] Alkali and Alkaline Earth Metals
Chapter: [5] Alkali and Alkaline Earth Metals
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Which of the alkali metal is having least melting point?

[5] Alkali and Alkaline Earth Metals
Chapter: [5] Alkali and Alkaline Earth Metals
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Define isotonic solutions.

[9] Solutions
Chapter: [9] Solutions
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For d-electron, the orbital angular momentum is

[2] Quantum Mechanical Model of Atom
Chapter: [2] Quantum Mechanical Model of Atom
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If uncertainty in position and momentum are equal, then minimum uncertainty in velocity is

[2] Quantum Mechanical Model of Atom
Chapter: [2] Quantum Mechanical Model of Atom
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