RRB GROUP D Chemistry Quiz - 62

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Question 1:

Dettol is a brand of cleaning supplies, disinfectant and antiseptic that is a mixture of-

Question 2:

Which of the following part of the flame is yellow in colour ?

Question 3:

Sacrificial anode protects iron or ships , underground pipelines from rusting , the process is called cathodic protection. 

Which of the following metals can be used as a sacrificial anode ?

  1. Aluminium
  2. Zinc
  3. Magnesium

Question 4:

The formation of ozone hole in the Antarctica region has been a cause of concern . What could be the reason for the formation of this hole ?

Question 5:

Which of the following statement is the consequence of global warming ?

  1. Increased average temperature of the Earth
  2. Melting of polar ice caps
  3. Increased BOD
  4. Increased DO

Question 6:

Formation of ammonia from H2 and N2 by Haber’s process using Fe is an example of 

Question 7:

Glass and plastics are-

  1. Amorphous solids
  2. Supercooled liquids 
  3. Isotropic in nature
  4. Crystalline solids

Question 8:

Hydrogen – oxygen fuel cell 

Question 9:

Which of the following have higher vapour pressure?

Question 10:

Which of the following is purified by steam distillation?

  1. Turpentine oil
  2. Aniline
  3. Nitrobenzene