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Question 1:

Which of the following is the source of solar energy?

Question 2:

When iron filings and powdered sulphur are mixed together in a china dish

Question 3:

In pressure cooker , food cooks faster because 

Question 4:

Which of the following separation method is used in diagnostic laboratories for blood and urine tests?

Question 5:

Chemical equation is balanced to satisfy 

Question 6:

Who discovered the law of definite proportions ?

Question 7:

Relation between vapour density and molecular weight

Question 8:

Which of the following term change with change in temperature ?

Question 9:

Which one of the following process is NOT useful for purification of solid impurities ?

Question 10:

Which of the following is incorrect about solids?