Important Questions of Organic Chemistry – Some Basic Principles and Techniques Chemistry | Zigya

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 Multiple Choice QuestionsShort Answer Type

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181.

Identify the functional groups in the following compound:




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182.

Write the IUPAC names of the following compounds:

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 Multiple Choice QuestionsLong Answer Type

183.

What do you understand by:
(i) Homolytic fission
(ii) Heterolytic fission?

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184.

Explain the terms:
(i) Electrophiles
(ii) Nucleophiles

Or

What are electrophiles and nucleophiles? Explain with examples.

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 Multiple Choice QuestionsShort Answer Type

185.

Using the curved-arrow notation, show the formation of reactive intermediate when the following covalent bonds undergo heterolytic cleavage.
(a) CH3 – SCH3 (b) CH3 – CN (C) CH3 – Cu

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186. Giving justification, categorise the following molecules/ions as nucleophile or electrophile:

HS to the power of minus comma space BF subscript 3 comma space straight C subscript 2 straight H subscript 5 straight O to the power of minus comma space left parenthesis CH subscript 3 right parenthesis subscript 3 space straight N semicolon space space CI to the power of circled dash comma space
space space space space space CH subscript 3 space minus space straight C with plus on top space equals space straight O semicolon space space space straight H subscript 2 straight N with bar on top semicolon comma space NO subscript 2 superscript plus.


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187.

Identify the electrophilic centre in the following:
CH3CH = O, CH3CN, CH3I

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188.

Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles:
CH subscript 3 COOH space plus space HO to the power of minus space space rightwards arrow space space CH subscript 3 COO to the power of minus space plus space straight H subscript 2 straight O

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189.

Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles:

CH subscript 3 COCH subscript 3 space plus space NC to the power of minus space space rightwards arrow space space space CH subscript 3 straight C left parenthesis CN right parenthesis OHCH subscript 3

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190.

Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles:
straight C subscript 6 straight H subscript 6 space plus space CH subscript 3 straight C with plus on top straight O space rightwards arrow space space space space straight C subscript 6 straight H subscript 5 COCH subscript 3

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