NTPC CBT-2 chemistry Quiz - 50

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Question 1:

Which of the following is the example of multimolecular colloids?

Question 2:

Water can be conserved by 

  1. Constructing dams and reservoirs
  2. Adopting water harvesting techniques
  3. Cutting more trees
  4. By using drip irrigation method

Question 3:

The major ingredient of leather is

Question 4:

Brass gets discoloured in air because of the presence of which of the following gases in air?

Question 5:

Ultrasonic jets cause pollution by diluting-