NTPC CBT-2 Chemistry Quiz - 51

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Question 1:

Which of the following is an ionic compound?

Question 2:

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

Question 3:

The chemical entities present in the mesosphere of the atmosphere are 

  1. O2+
  2. NO+
  3. O+
  4. O3

Question 4:

What is the Chemical formula for “Baking Soda”?

Question 5:

Which of the following elements does not contain neutrons?