Bee sting contains________________
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When iron rusts, its weight .....
The chemical formula of Ammonia is _____ .
An element A forms an oxide with formula A3O4. What is the valency of element A?
Which of the following is the best fire-extinguisher?
Which one of the following is an ohmic conductor?
Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in
Name the acid present in lemon.