NTPC CBT-2 Chemistry Quiz - 25

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Question 1:

Javelle water is an aqueous solution of which of the following?

Question 2:

Which one of the following properties decreases across the periodic table from left to right and increases from top to bottom?

Question 3:

The earthy impurities associated with minerals used in metallurgy are called-

Question 4:

Which of the following compound is used in black and white photography ?

Question 5:

Which of the following gases is used in cigarette lighters ?