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 Multiple Choice QuestionsShort Answer Type

121.

Which effect should the following resonance of vinyl chloride have on its dipole moment?
CH2 = CH—Cl  ↔  CH2— CH = Cl+

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122.

How would you convert bromo ethane to n-butane?

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123.

How would you convert bromo methane into ethanol?

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124.

Write the IUPAC name of chloroform.

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125.

Write the IUPAC name of Iodoform.

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126.

Iodination of benzene is carried in the presence of oxidising agent like HIO3. Give reason.

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127.

Out of C6H5CH2Cl and C6H5CHCIC6H5 which is more easily hydrolysed by aqueous KOH. 


Hydrolysis by aqueous KOH proceed through the formation of carbocation. If carbocation is stable, then the compound is easily hydrolyzed by aqueous KOH. In the given compounds benzyl chloride forms  primary carbocation, while chlorodiphenylmethane forms secondary carbocation, which is more stable than primary carbocation, hence C6H5CHClC6H5 is more easily hydrolysed by aqueous KOH.

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128. Write IUPAC name of the following:



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129. Write IUPAC name of the following:







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130. Write IUPAC name of the following:








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