NTPC CBT-2 Chemistry Quiz - 22

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Question 1:

Hard water is not used for 

  1. In washing clothes
  2. In washing utensils 
  3. In boilers
  4. In irrigating crops 

Question 2:

Which of the following occurs as dry deposits and is also known as Sajimati (efflorescent soil) in India?

Question 3:

Which of the following statements is not correct for nitrogen?

Question 4:

Which of the following is an example of non-ionic detergent?

Question 5:

In Electrochemical cell

  1. Chemical energy converts into electrical energy
  2. Electrical energy converts into chemical energy
  3. Electrons flows from anode to cathode
  4. Electrons flows from cathode to anode