What is the role of mercuric sulphate?
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What is the unit of ph?
Which gas is used, in laboratories etc. for burners ?
What is the purest form of water ?
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What is mortar /
Explain acid gas?
How is petroleum manufactured?
Why does a dog hang out his tongue, when it is hot ?
What is meant by amalgam ?
What is mole?
What is the reaction that occurring between fas and potassium dichromate?
Why ph scale range is 14?
What are the uses of Alloy ?