Methane contributes towards global warming so it is called a _________________ gas.
Which of the following meals is NOT obtained by reduction using carbon?
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What product is formed when electricity is passed through an aqueous solution of sodium chloride?
In the Modern Periodic Table, a zig-zag line separates
Ice floats on water because its density is
Which of the following gases makes bread or cake rise making them soft and spongy?
___ is the number of shells for elements of the 3rd period.
Which among the following is called quicksilver?
Milk of Magnesia is used as a
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