Alkali metals can
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The biogas used for cooking is a mixture of which of the following ?
Metals reacts with acids to give:
Which of the following inert gases is placed in period 4 of the periodic table?
The process of depositing a layer of any desired metal on another material by means of electricity is called ___________.
When Granite rocks get metamorphosed, they form
Of the following commonly used materials, the one that is not an alloy is
If the atomic number of Krypton is 36, then its electronic configuration is: