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Question 1
Blue litmus paper is converted into red in solution of ______.
Question 2
Heating of a ore below its melting point in the absence of air is known as ______.
Question 3
The substance which decreases the rate of a chemical reaction is called _____.
Question 4
Neutrons were discovered by?
Question 5
Which is the type of elements?
Question 6
Solid carbon Dioxide is known as ____________.
Question 7
What among following is used to produce artificial rain?
Question 8
‘Plaster of Paris’ chemically known as ____________.
Question 9
The age of the Earth can be determined by
Question 10
A liquid is said to be boiled when its ___________.
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Apr 20SSC & Railway
