KVS SCIENCE QUIZ 59 (ATOMS)

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Question 1:

The chemical formula of sodium carbonate is_____.

Question 2:

Dalton's theory is based on:

Question 3:

The correct formula for calcium hydroxide is -.

Question 4:

A group of molecules carrying a charge is known as _________ ion.

Question 5:

Which of the following metals is a bad conductor of heat?

Question 6:

Ultrasonic jets cause pollution by diluting-

Question 7:

Which of the following compounds has the most atoms?

Question 8:

The ratio of the mass of nitrogen to the mass of hydrogen in ammonia is -

Question 9:

The atomicity of sulphur is ………….

Question 10:

The chemical symbol of which of the following elements is derived from Latin?