Important Questions of Haloalkanes and Haloarenes Chemistry | Zigya

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301.

IUPAC name of 

CH3CH2C(Br)=CH-Cl is :

  • 2 - bromo - l - chloro butene - 1

  • 1 - chloro - 2 - bromo - butene

  • 3 - chloro - 2 - bromo butene - 2

  • none of these


302.

Which of the following sequence of reactions (reagents) can be used for the conversion of C6H5CH2CH3 into C6H5CH=CH2?

  • SOCl2 ; H2O

  • SO2Cl2; alc. KOH

  • Cl/hν; H2O

  • SOCl2 ; alc. KOH.


303.

Which ofthe following compounds has the highest boiling point?

  • CH3CH2CH2Cl

  • CH3CH2CH2CH2Cl

  • CH3CH(CH3)CH2Cl

  • (CH3)3CCl


304.

The correct increasing order of the reactivity of halides for S1 reaction is

  • CH3- CH2- X<(CH3)2CH= X <CH2= CH-CH2- X< PhCH2- X

  • (CH3)2CH-X <CH3-CH2- X < CH2= CH - CH2-X < PhCH2-X

  • PhCH2- X<(CH3)2CH=X<CH3-CH2-X<CH2= CH- CH2- X

  • CH2= CH - CH2- X < Ph- CH2- X <(CH3)2CH-X <CH3-CH2- X


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305.

The major product formed in the following reaction is

  • (CH3)2CH-CH2OCH3

  • CH3-CH(OCH3)-CH2CH3

  • CH3-C(CH3)=CH2

  • (CH3)2-C-OCH3- CH3


306.

The major product obtained on treatment of CH3CH2CH(F)CH3 with CH3O/CH3OH is

  • CH3CH2CH(OCH3)CH3

  • CH3CH = CHCH3

  • CH3CH2CH = CH2

  • CH3CH2CH2CH2OCH3


307.

CH3CO2C2H5 on reaction with sodium ethoxide in ethanol gives A, which on heating in the presence of acid gives B. Compound B is

  • CH3COCH2COOH

  • CH3COCH3

  • CH2=C(OC2H5)2


308.

Assertion : Rate of hydrolysis of methyl chloride to methanol is higher in DMF than in water.

Reason : Hydrolysis of methyl chloride follows second order kinetics.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


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309.

CH3-CH2-Cl alc. KOH A, the product is :

  • CH3CH2OK

  • CH3CHO

  • CH3CH2OCH2CH3

  • CH2=CH2


310.

Which ofthe following is involved in Sandmeyer's reaction ?

  • Ferrous salt

  • Diazonium salt

  • Ammonium salt

  • Cupromonium salt


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