Lakshya Education MCQs

Question: Identify the metal which is non toxic in nature.
Options:
A.Chromium
B.Gold
C.Cadmium
D.Cobalt
Answer: Option B

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More Questions on This Topic :

Question 1. Iron rusts quickly in
  1.    Rain water
  2.    Sea water
  3.    Distilled water
  4.    River water
Answer: Option B
Question 2. Mercury is a :
  1.    Solid metal
  2.    Liquid metal
  3.    Solid non-metal
  4.    Liquid non-metal
Answer: Option B
Question 3. The lustre of the metals is because of
  1.    High density, due to closed packing of atoms
  2.    High polish
  3.    Reflection of light due to the presence of free electrons
  4.    Absorption of light due to the presence of cavities
Answer: Option C
Question 4. Which metal does not undergo corrosion due to the formation of oxide layer?
  1.    Copper
  2.    Iron
  3.    Aluminium
  4.    Zinc
Answer: Option C
Question 5. The wire of flash bulb is made of:
  1.    Copper
  2.    Barium
  3.    Magnesium
  4.    Silver
Answer: Option C
Question 6. Which of the following is very reactive and kept in kerosene?
  1.    Sodium
  2.    Potassium
  3.    Iodine
  4.    Bromine
Answer: Option A

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