What is the prime constituents of cement?
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Why is ammonia solution added while preparing edta solution?
What is the chemical composition of fat in human body?
Which gas used for purifying, air in underground enterprises ?
What is Nutralication ?
Why are wires used to carry electricity ?
Why cooling is produced when a wet ?khus khus? screen is hung on the doors and windows ?
Why is the indicator eriochrome black(ebt) shows wine red color at the beginning and blue color at the end?
Why can?t snowballs be made in very cold weather ?
Explain the Electronic Theory of Valency?
Which element is nether a solid nor a liquid?
Explain the Different forms of Glass ?
what is the formula of petrol