Subject

Chemistry

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

51.

What is the general outer electronic configuration of the coinage metals ?

  • ns2 np6

  • (n-1)d10 ns1

  • (n-1)d10 ns2

  • (n-1)d9 ns2


52.

What is the co-ordination number of Cl- in NaCl crystal ?

  • 8

  • 6

  • 4

  • 3


53.

Which of the following will not react with NaOH ?

  • C2H5OH

  • CH3CONH2

  • CH(CN)3


54.

Chloroform , when kept open , is oxidised to :

  • CO2

  • COCl2

  • CO2 , Cl2

  • none of these


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55.

Iodoform test is not given by :

  • HCHO

  • CH3CHO

  • CH3COCH3

  • C2H5OH


B.

CH3CHO

Iodoform test is given by those compounds which have -CH3CO group or on oxidation yields this group .Formaldehyde does not have -CH3CHO group , hence it does not give iodoform test .

CH3CHO I2/NaOH CHI3 yellow ppt


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56.

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


57.

Benedict's solution is not reduced by :

  • formaldehyde

  • acetaldehyde

  • glucose

  • acetic anhydride


58.

Aldol condensation will not occur in :

  • HCHO

  • CH3CH2CHO

  • CH3COCH3

  • CH3CHO


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59.

Which of the following alcohol is used as beverage ?

  • Propanol

  • 2 - butanol

  • Methanol

  • Ethanol


60.

When acetamide reacts with Br2 and caustic soda , then we get :

  • acetic acid

  • bromoacetic acid

  • methyl amine

  • ethyl amine


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