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

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

• 8

• 6

• 4

• 3

Which of the following will not react with NaOH ?

• 

• C₂H₅OH

• CH₃CONH₂

• CH(CN)₃

Chloroform , when kept open , is oxidised to :

• CO₂

• COCl₂

• CO₂ , Cl₂

• none of these

Iodoform test is not given by :

• HCHO

• CH₃CHO

• CH₃COCH₃

• C₂H₅OH

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

Benedict's solution is not reduced by :

• formaldehyde

• acetaldehyde

• glucose

• acetic anhydride

Aldol condensation will not occur in :

• HCHO

• CH₃CH₂CHO

• CH₃COCH₃

• CH₃CHO

Which of the following alcohol is used as beverage ?

• Propanol

• 2 - butanol

• Methanol

• Ethanol

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

• acetic acid

• bromoacetic acid

• methyl amine

• ethyl amine