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Question 1:

The bleaching agent present in the bleaching powder is _________

Question 2:

Which of the following element is smallest in size?

Question 3:

How many molecules of water are present in one molecule of washing soda?

Question 4:

How many water molecules are present in one molecule of copper sulphate?

Question 5:

Which of the following is a cation?

Question 6:

What do Lithium, Sodium and Potassium have in common?

Question 7:

Sodium metal is stored in ……….

Question 8:

Which non-metal is liquid at room temperature?

Question 9:

Which of the following options has the highest melting point and boiling point?

Question 10:

Which one of the following element is mixed up in making steel which can resist high temperature and which has high level hardness -