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NEET Questions
Chemistry
Organic Chemistry - Some Basic Principles And Techniques
Recommended MCQs - 171 Questions (171 Qs)

Select Chapter Topics:

Hybridisation & Structure of Carbon Compounds

Nomenclature

Bond Cleavage & Isomerism

Structural Isomers

Stereo Isomers

Conformational Isomers

Nucleophile & Electrophile

Electron Displacement Effects

Acidic & Basic Character

Aromaticity & Polarity

Reaction Intermediates ; Preparation & Properties

Types of Reaction

Purification of Organic Compounds

Qualitative Analysis of Organic Compounds

Quantitative Analysis of Organic Compounds

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Q. No.

The $C - H$ bond distance is longer in -

1.   $C_{2} H_{2}$

2.   $C_{2} H_{4}$

3.   $C_{2} H_{6}$

4.   $C_{2} H_{2} {Br}_{2}$

Q10:

78% From NCERT

Subtopic: Hybridisation & Structure of Carbon Compounds |

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The total number of isomers of $C_{4} H_{8}$ are-

1. 8

2. 7

3. 6

4. 5

Q57:

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Subtopic: Structural Isomers |

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The optically active compound among the following is-

1. Butane

2. 2-Methyl pentane

3. 4-Methyl pentane

4. 3-Methyl hexane

Q66:

67% From NCERT

Subtopic: Stereo Isomers |

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The R and S enantiomers of an optically active compound differ in-

1. Their optical rotation of plane-polarized light

2. Their reactivity with chiral reagents

3. Their solubility in achiral reagents

4. Their melting points

Q73:

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Subtopic: Conformational Isomers |

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The number of primary amines of the formula $C_{4} H_{11} N$ are :

1. 1

2. 3

3. 4

4. 5

Q55:

53% From NCERT

Subtopic: Structural Isomers |

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But-2-ene exhibits cis-trans isomerism due to-

1. Rotation around $C_{3} - C_{4}$ sigma bond

2. Rotation around $C_{1} - C_{2}$ bond

3. Restricted rotation around C=C bond

4. Rotation around $C_{2} - C_{3}$ double bond

Q64:

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Subtopic: Stereo Isomers |

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The C-C bond length of the following molecules are in the order-

1. $C_{2} H_{6} > C_{2} H_{4} > C_{6} H_{6} > C_{2} H_{2}$

2. $C_{2} H_{2} < C_{2} H_{4} < C_{6} H_{6} < C_{2} H_{6}$

3. $C_{2} H_{6} > C_{2} H_{2} > C_{6} H_{6} > C_{2} H_{4}$

4. $C_{2} H_{4} > C_{2} H_{6} > C_{2} H_{2} > C_{6} H_{6}$

Q20:

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Subtopic: Hybridisation & Structure of Carbon Compounds |

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An isomer of ethanol is-

1. Methanol

2. Diethyl ether

3. Acetone

4. Dimethyl ether

Q46:

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Subtopic: Structural Isomers |

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The maximum number of carbon atoms arranged linearly in the molecule, ${CH}_{3} - C \equiv C - CH = {CH}_{2,}$ are -

1. 3

2. 4

3. 5

4. 6

Q19:

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The IUPAC name of the above mentioned compound is -

1. p-Phenyl diphenyl

2. p-1-biphenyl benzene

3. 1,1',4',1''-terphenyl

4. Terphenyl

Q39:

Subtopic: Nomenclature |

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3
4
5
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Last

Q. No.

Select Chapter Topics:

Hybridisation & Structure of Carbon Compounds

Nomenclature

Bond Cleavage & Isomerism

Structural Isomers

Stereo Isomers

Conformational Isomers

Nucleophile & Electrophile

Electron Displacement Effects

Acidic & Basic Character

Aromaticity & Polarity

Reaction Intermediates ; Preparation & Properties

Types of Reaction

Purification of Organic Compounds

Qualitative Analysis of Organic Compounds

Quantitative Analysis of Organic Compounds

The $C - H$ bond distance is longer in -

1.   $C_{2} H_{2}$

2.   $C_{2} H_{4}$

3.   $C_{2} H_{6}$

4.   $C_{2} H_{2} {Br}_{2}$

Select Chapter Topics:

Hybridisation & Structure of Carbon Compounds

Nomenclature

Bond Cleavage & Isomerism

Structural Isomers

Stereo Isomers

Conformational Isomers

Nucleophile & Electrophile

Electron Displacement Effects

Acidic & Basic Character

Aromaticity & Polarity

Reaction Intermediates ; Preparation & Properties

Types of Reaction

Purification of Organic Compounds

Qualitative Analysis of Organic Compounds

Quantitative Analysis of Organic Compounds

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Select Chapter Topics:

Hybridisation & Structure of Carbon Compounds

Nomenclature

Bond Cleavage & Isomerism

Structural Isomers

Stereo Isomers

Conformational Isomers

Nucleophile & Electrophile

Electron Displacement Effects

Acidic & Basic Character

Aromaticity & Polarity

Reaction Intermediates ; Preparation & Properties

Types of Reaction

Purification of Organic Compounds

Qualitative Analysis of Organic Compounds

Quantitative Analysis of Organic Compounds

The C-H bond distance is longer in - 1. C2H2 2. C2H4 3. C2H6 4. C2H2Br2

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Select Chapter Topics:

Hybridisation & Structure of Carbon Compounds

Nomenclature

Bond Cleavage & Isomerism

Structural Isomers

Stereo Isomers

Conformational Isomers

Nucleophile & Electrophile

Electron Displacement Effects

Acidic & Basic Character

Aromaticity & Polarity

Reaction Intermediates ; Preparation & Properties

Types of Reaction

Purification of Organic Compounds

Qualitative Analysis of Organic Compounds

Quantitative Analysis of Organic Compounds

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The $C - H$ bond distance is longer in -

1. $C_{2} H_{2}$

2. $C_{2} H_{4}$

3. $C_{2} H_{6}$

4. $C_{2} H_{2} {Br}_{2}$