Chemistry Mcqs

Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate ?

• (A)  Primary alcohol
• (B)  Secondary alcohol
• (C)  Tertiary alcohol
• (D)  All of above

Answer

Submitted By :Ali Uppal

Methyl alcohol is not used__________________?

• (A)  As a solvent
• (B)  As an antifreezing agent
• (C)  As a substitute for petrol
• (D)  For denaturing of ethyl alcohol

Answer

Submitted By :Ali Uppal

Which compound shows hydrogen bonding ?

• (A)  C2H6
• (B)  C2H5Cl
• (C)  CH3OCH3
• (D)  C2H5OH

Answer

Submitted By :Ali Uppal

When phenol is heated with concentrated nitric acid the product is________________?

• (A)  Picric acid
• (B)  o-nitrophenol
• (C)  1 3 5 -trinitro benzene
• (D)  p-nitrophenol

Answer

Submitted By :Ali Uppal

The given dissociation constant (Ka) value 1.3×10-10 is of_________________?

• (A)  Alcohol
• (B)  Acetic acid
• (C)  Water
• (D)  Phenol

Answer

Submitted By :Ali Uppal

The distinction test for primary secondary and tertiary alcohol required to react each of them is_________________?

• (A)  Cone. HCI and anhydrous SOCl2
• (B)  Cone. HCI and anhydrous CaCl2
• (C)  Cone. HCI and anhydrous PCl2
• (D)  Con
• (E)  HCI and anhydrous ZnCl2

Answer

Submitted By :Ali Uppal

The oxidation of isopropyl alcohol will yield___________________?

• (A)  propane
• (B)  Propanol
• (C)  Propanone
• (D)  Propanoic acid

Answer

Submitted By :Ali Uppal

The rectified spirit contains________________?

• (A)  12% alcohol
• (B)  90% alcohol
• (C)  95% alcohol
• (D)  100% alcohol

Answer

Submitted By :Ali Uppal

The formula of starch is__________________?

• (A)  C12H22O11
• (B)  C6H10O5
• (C)  (C6H10O5)n
• (D)  C6H12O6

Answer

Submitted By :Ali Uppal

Water gas heated at 450?C and 200 atm pressure in the presence of ZnO+Cr2O3 will produce________________?

• (A)  methanol
• (B)  methanol
• (C)  carbonic acid
• (D)  methane

Answer

Submitted By :Ali Uppal