Chemistry Mcqs

Which of the following is typical transition metal ?

• (A)  Sc
• (B)  Y
• (C)  Cd
• (D)  Co

Answer

Submitted By :Ali Uppal

When an active metal like Al comes in contact with less active element like Cu then it produces__________________?

• (A)  dry cell
• (B)  galvanic cell
• (C)  electrolytic cell
• (D)  A and B

Answer

Submitted By :Ali Uppal

Which is sold as fertilizer ___________________?

• (A)  CaSiO3
• (B)  Na2SiO3
• (C)  Ca3(PO4)2
• (D)  MnSiO3

Answer

Submitted By :Ali Uppal

The process of polymerization was classified by___________________?

• (A)  Strecker
• (B)  Sabatier
• (C)  Runge
• (D)  W. H. Carothers

Answer

Submitted By :Ali Uppal

Hydrolysis of an oligosaccharide in the presence of acid yields________________?

• (A)  one monosaccharide unit
• (B)  No monosaccharide unit
• (C)  2-9 monosaccharide unit
• (D)  many monosaccharide

Answer

Submitted By :Ali Uppal

Common example of carbohydrates are__________________?

• (A)  Cellulose glycogen galactose
• (B)  Glyceraldehydes glucose peptone
• (C)  Glycerol phospho lipids collagen
• (D)  Legumin amylopectin albumin

Answer

Submitted By :Ali Uppal

Industrial materials and thermal power stations are coated with______________________?

• (A)  Polyester resins
• (B)  Epoxy paints
• (C)  Polyamide resins
• (D)  Polyvinyl chloride

Answer

Submitted By :Ali Uppal

The important monomers of acryclic resins is__________________?

• (A)  Vinyl chloride
• (B)  Styrene
• (C)  Methylmethacrylate
• (D)  Hexamethylenediamine

Answer

Submitted By :Ali Uppal

Polymers described as large molecules built up from small repeating units called________________?

• (A)  Biopolymers
• (B)  Dimers
• (C)  Monomers
• (D)  metamers

Answer

Submitted By :Ali Uppal

Any process of chemical decay of metals due to the action of surrounding medium is called__________________?

• (A)  activation
• (B)  enameling
• (C)  corrosion
• (D)  coating

Answer

Submitted By :Ali Uppal