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An organic compound 'X' having molecular formula C5H10O yields phenyl hydrazone and gives negative response to the Iodoform test and Tollen's test. It produces n-pentane on reduction. 'X' could be:

  • Option 1)

    3-pentanone

  • Option 2)

    n-amyl alcohol

  • Option 3)

    pentanal

  • Option 4)

    2-pentanone

 

Answers (1)

best_answer

As we learnt in

Haloform reaction -

CH_{3}COR\:\:is\:oxidised\:by\:\:NaOI\:\:to\:form\:iodoform\:and\:\:RCO_{2}Na

- wherein

C_{2}H_{5}COCH_{3}+NaOH+I_{2}\rightarrow C_{2}H_{5}CO_{2}Na+CHI_{3}

 

 and

 

Oxidation of aldehydes with Tollen's reagent / silver mirror test -

–  Distinguish aldehydes from ketones

.–  Tollen's reagent = ammoniacal silver nitrate solution.

 

- wherein

 

 

 


Option 1)

3-pentanone

This is the correct option

Option 2)

n-amyl alcohol

This option is incorrect

Option 3)

pentanal

This option is incorrect

Option 4)

2-pentanone

This option is incorrect

Posted by

prateek

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