Which is the best conductor of electricity?
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which metal is found abundantly in the earths crust??
Why is Davy Lamp called a Safety Lamp ?
While standing on railway platform and heating the whistle of an engine coming towards us , we hear the sound increasing; bit when the engine is receding from us it appears to fall why ?
What is Nutralication ?
How many elements have been discovered ?
What is the monomer of polyethene?
What is chemical oxygen demand?
Why are the bright circles of light seem under the trees, when the sun shines?
Define what is oxidation and reduction reaction?
Explain the Properties of Gases ?
Why can?t snowballs be made in very cold weather ?
What are the products formed after cod analysis?