Chemistry Mcqs

For which mechanisms the first step involved is the same ?

• (A)  E1 + E2
• (B)  E2 + SN2
• (C)  E1 and SN1
• (D)  SN1 and SN2

Answer

Submitted By :Ali Uppal

Ethanol and methanol can be distinguished by a__________________?

• (A)  Iodoform test
• (B)  Lucas test
• (C)  Benedicts test
• (D)  Tollens test

Answer

Submitted By :Ali Uppal

The hydrogenation of phenol in the presence of Ni and heat gives_________________?

• (A)  cyclohexane
• (B)  n – hexane
• (C)  1 – hexanol
• (D)  cyclohexanol

Answer

Submitted By :Ali Uppal

Phenol was isolated by Runge from________________?

• (A)  vegetable oil
• (B)  coaltar
• (C)  wood
• (D)  none of these

Answer

Submitted By :Ali Uppal

Absolute alcohol is obtained when rectified spirit is treated with__________________?

• (A)  Ca(OH)2
• (B)  CaCO3
• (C)  CaCl2
• (D)  CaO

Answer

Submitted By :Ali Uppal

Methanol can be obtained from_________________?

• (A)  water gas
• (B)  destructive distillation of wood
• (C)  methane
• (D)  all

Answer

Submitted By :Ali Uppal

Ethanol can be converted into ethanoic acid by_________________?

• (A)  Hydrogenation
• (B)  Hydration
• (C)  Oxidation
• (D)  Fermentation

Answer

Submitted By :Ali Uppal

Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is_________________?

• (A)  oxidation
• (B)  elimination
• (C)  condensation polymerization
• (D)  additional polymertization

Answer

Submitted By :Ali Uppal

Heating phenol with Zn will yield_________________?

• (A)  Benzene
• (B)  Benzoic acid
• (C)  Phenoxide
• (D)  Cyclohexane

Answer

Submitted By :Ali Uppal

Which compound is also known by the name of carbolic acid ?

• (A)  C2H2OH
• (B)  H2CO3
• (C)  C6H5OH
• (D)  H3PO3

Answer

Submitted By :Ali Uppal