${\mathrm{CH}}_3-\stackrel{\underset{\left|\right|}{\mathrm{O}}}{\mathrm{C}}-\mathrm{O}-\stackrel{\underset{\left|\right|}{\mathrm{O}}}{\mathrm{C}}-{\mathrm{C}}_6{\mathrm{H}}_5$ and ${\mathrm{C}}_6{\mathrm{H}}_5-\stackrel{\underset{\left|\right|}{\mathrm{O}}}{\mathrm{C}}-\mathrm{O}-\stackrel{\underset{\left|\right|}{\mathrm{O}}}{\mathrm{C}}-{\mathrm{CH}}_3$ are-

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>BEGINNER'S BOX>Q 12

Calculate total number of geometrical isomers in the following compound
${\mathrm{CH}}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}-{\mathrm{C}}_6{\mathrm{H}}_5$

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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>BEGINNER'S BOX>Q 20

Which of the following has $\text{'}\mathrm{S}\text{'}$ configuration :-

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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>BEGINNER'S BOX>Q 24

Which one is not correct for a homologous series -

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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>BEGINNER'S BOX>Q 32

Which of the following is Crotonic acid?

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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>BEGINNER'S BOX>Q 41

Aniline is purified by 

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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>BEGINNER'S BOX>Q 42

Which of the following species is an electrophile?

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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>BEGINNER'S BOX>Q 43

Which of the following acts as a nucleophile?

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Beta Question Bank for Medical: Chemistry>Chapter 21 - Organic Chemistry- Some Basic Principles and Techniques>BEGINNER'S BOX>Q 44

Which of the following contains only three pairs of electrons?