? GTU Engineering 1st Year MCQ | Chemistry-2110001 Winter 2015 Sem-1

MCQ(s) of Chemistry (2110001) - Winter 2015 Sem-1

    • Q. 1  Hardness of water is expressed in equivalents of…..
    • (A) MgCO3
      (B) CaCO3
    • (C) BaSO4
      (D) MgSO4
    • (B) CaCO3
    • Q. 2  Temporary hardness of water is caused by the presence of
    • (A) Chlorides of calcium and magnesium
      (B) Sulfates of calcium and magnesium
    • (C) Bicarbonates of calcium and magnesium
      (D) Carbonates of calcium and magnesium
    • (B) Sulfates of calcium and magnesium
    • Q. 3  Free radical polymerization mechanism requires
    • (A) Catalyst
      (B) Initiator
    • (C) Fillers
      (D) Sulphur
    • (B) Initiator
    • Q. 4  Example of addition polymer is
    • (A) Polystyrene
      (B) Polyethene
    • (C) Poly vinyl chloride
      (D) All
    • (D) All
    • Q. 5  Chemical formula of Rust is….
    • (A) Fe2O3
      (B) FeO
    • (C) Fe2O3 .XH2O
      (D) Fe2O3
    • (D) Fe2O3 .XH2O
    • Q. 6  Which metal is not employed as Sacrificial anode?
    • (A) Mg
      (B) Zn
    • (C) Al
      (D) Na
    • (D) Na
    • Q. 6  Ratio of volumes of metal oxides to metal is known as,
    • (A) Specific mass ratio
      (B) Volume ratio
    • (C) Specific ratio
      (D) Specific volume ratio
    • (B) Volume ratio
    • Q. 7  Thermosetting polymers are
    • (A) Cross linked
      (B) Heat resistant
    • (C) Non-recyclable
      (D) All
    • (D) All
    • Q. 8  Corrosion is a process reverse of ______ of metal.
    • (A) Destruction
      (B) Extraction
    • (C) Rusting
      (D) Galvanizing
    • (D) Galvanizing
    • Q. 9  When temporary hard water is boiled, one of the substance formed is
    • (A) CaCO3
      (B) CaSO4
    • (C) HCl
      (D) CO2
    • (A) CaCO3
    • Q. 10  Type of bond in NH3
    • (A) Covalent
      (B) Ionic
    • (C) Both A&B
      (D) None of these
    • (A) Covalent
    • Q. 11  Natural rubber is…
    • (A) Polychloroprene
      (B) Cis-Polyisoprene
    • (C) Polyneoprene
      (D) Trans-Polyisoprene
    • (B) Cis-Polyisoprene
    • Q. 12  Electrochemical corrosion takes place on
    • (A) Anodic area
      (B) Cathodic area
    • (C) Cathodic area
      (D) Near anode
    • (A) Anodic area
    • Q. 13  In Proximate analysis of coal the % of which is determined…
    • (A) Nitrogen
      (B) Sulphur
    • (C) Carbon
      (D) Fixed carbon
    • (C) Carbon