Chemistry Mcqs

Which of the following aldehydes shows rapid reaction with sodium nitroprusside ?

• (A)  formaldehyde
• (B)  accetaldehyde
• (C)  benzaldehyde
• (D)  acetone

Answer

Submitted By :Ali Uppal

The carbon atom of carbonyl group is__________________?

• (A)  sp hybridized
• (B)  sp2 hybridized
• (C)  cp3 hybridized
• (D)  dsp2 hybridized

Answer

Submitted By :Ali Uppal

Which of the following will have the highest boiling point ?

• (A)  methanol
• (B)  ethanal
• (C)  propanal
• (D)  hexanone

Answer

Submitted By :Ali Uppal

Iodoform test can be used to distinguish between_________________?

• (A)  ethanol and methanol
• (B)  acetaldehyde and methanal
• (C)  acetone and diethyl ketone
• (D)  all of the above

Answer

Submitted By :Ali Uppal

Cannizaros reaction takes place through the transfer of ____________________ from complex anion?

• (A)  hydrogen ion
• (B)  hydride ion
• (C)  oxide ion
• (D)  methoxide ion

Answer

Submitted By :Ali Uppal

Dry distillation of calcium acetate results in the formation of_________________?

• (A)  formaldehyde
• (B)  acetaldehyde
• (C)  methane
• (D)  acetone

Answer

Submitted By :Ali Uppal

Tetrahydroborate ion is the source of_______________?

• (A)  proton
• (B)  H+
• (C)  both A & amp; B
• (D)  H-

Answer

Submitted By :Ali Uppal

Acetal on acid hydrolysis generates__________________?

• (A)  Alcohol
• (B)  Ketone
• (C)  Both A & B
• (D)  None of the above

Answer

Submitted By :Ali Uppal

Ncleophilic addition reactions are catalysed__________________?

• (A)  Acid
• (B)  Base
• (C)  Both A and B
• (D)  None

Answer

Submitted By :Ali Uppal

Oxidation of primary alcohol gives________________?

• (A)  ketone
• (B)  Aldehyde
• (C)  Alkene then – COOH
• (D)  Ester

Answer

Submitted By :Ali Uppal