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Which of the following biphenyls is optically active?

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Important Questions on Organic Chemistry- Some Basic Principles and Techniques

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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>EXERCISE-II (Previous Year Questions)>Q 61
The correct corresponding order names of four aldoses with configuration given below,
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respectively, is :
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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>EXERCISE-II (Previous Year Questions)>Q 64

The IUPAC name ofQuestion Image is:-

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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>EXERCISE-II (Previous Year Questions)>Q 65

In the hydrocarbon
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The state of hybridization of carbons 1-2, 3 & 4-5  are in the following sequence:-

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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>EXERCISE-II (Previous Year Questions)>Q 66
The IUPAC name of the compound  CH3CH=CHC≡CH is:
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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>EXERCISE-II (Previous Year Questions)>Q 67
The correct IUPAC name of the compound Question Image is:-
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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>EXERCISE-II (Previous Year Questions)>Q 68
Which nomenclature is not according to IUPAC system ? 
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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>EXERCISE-II (Previous Year Questions)>Q 69
Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is:-
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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>EXERCISE-II (Previous Year Questions)>Q 70

The total number of π-bond electrons in the following structure is:-

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