Lakshya Education MCQs

Question: Which of the following is not present in German silver?
Options:
A.Copper
B.Nickel
C.Silver
D.Zinc
Answer: Option C

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More Questions on This Topic :

Question 1. Haloarenes are more stable than haloalkanes due to
  1.    Resonance effect
  2.    Inductive effect
  3.    Hyper conjugative effect
  4.    All of them
Answer: Option A
Question 2. Aluminium chloride is
  1.    Bronsted Lowry Acid
  2.    Arrhenius Acid
  3.    Lewis Acid
  4.    Lewis Base
Answer: Option C
Question 3. The unit of ionic product of water (Kw) is :
  1.    Mol2 let-1
  2.    Mol2 let-2
  3.    Mol-1 let-2
  4.    Mol-1 let-1
Answer: Option B
Question 4. Brass gets discoloured in air due to constant exposure in presence of:
  1.    Aluminium phosphide
  2.    Hydrogen sulphide
  3.    Hydrogenated wafers
  4.    Aluminium sulphide
Answer: Option B
Question 5. Ultra purification of a metal is done by :
  1.    Slugging
  2.    Zone melting
  3.    Smelting
  4.    Leaching
Answer: Option B
Question 6. Type metal used in printing press is an alloy of
  1.    Lead and copper
  2.    Lead and antimony
  3.    Lead and bismuth
  4.    Lead and zinc
Answer: Option B

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