NTPC CBT-2 Chemistry Quiz - 33

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Question 1:

Which of the following chemical is used in the manufacturing of dynamite?

Question 2:

In an atomic explosion, enormous energy is released which is due to-

Question 3:

To separate ammonium chloride from common salt, we use-

Question 4:

Zinc sulphide is commonly used-

Question 5:

In which of the following countries was the method of making rust-resistant iron discovered in the fifth century B.C?

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