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Question 1
Hardness of river water is because it contains.
Question 2
A hard coal containing little volatile mater is called...................
Question 3
Which of the following elements has the lowest melting point?
Question 4
Washing soda is_______.
Question 5
Cooking gas is a mixture of
Question 6
What is meant by Sulphur Shower?
Question 7
Atoms having the same number of protons but different numbers of neutrons are called:
Question 8
Which of the following elements is not radio-active ?
Question 9
Which one of the following non metals shows allotropy in the liquid state?
Question 10
Aluminium oxide is a/an _____.
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Dec 9SSC & Railway
