Which of the following elements has the lowest melting point?
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Electrons in the highest energy level of an atom are called ________.
Oxide of which of the following will turn red litmus blue?
Which drug is used for Pain Relief?
_____ is produced from incomplete burning of fuels such as petrol and diesel.
Which one of the following is a cation?
Name the noble gas which is placed in the third period and eighth group of the Modern Periodic table.
Uraninite is an ore/mineral of _______.