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91.

What is the type of hybridisation of each carbon in the following compounds:
(i) CH₃Cl (ii) (CH₃)₂CO (iii) CH₃CN (iv) HCONH₂(v) CH₃CH = CHCN?

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92.

Write the state of hybridisation of carbon in the following compounds and shapes of each of the molecules:
(a) H₂C = O, (b) CH₃F, (c) HC = N.

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93. What are hydrocarbons? Discuss their classification.

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94. What are heterocyclic compounds? Give examples.

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95.

What is a functional group? Name few functional groups.

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96.

Write a short note on homologous series.

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97.

Write a short note on:
(a) Generic formula
(b) Primary, secondary, tertiary and quaternary carbon atoms.

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98.

Expand each of the following condensed formulae into their complete structural formula ?

HOCH₂ CH₂NH₂

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99.

Expand each of the following condensed formula into their complete structural formula ?

CH₃CH₂CH₂CH₃

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100.

Expand each of the following condensed formula into their complete structural formula?

CH₃CH₂COCH₂CH₃

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