TRB CHEMISTRY Questions
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Quiz Questions And Answers
The non metal which is in liquid state is
Which of the following is not a fullerene?
'No two electrons in an atom can have the same set of four quantum number' is
Which one of the following is associated with the formation of brown air in traffic congested cities
Which of the following liberates hydrogen on reaction with sodium?
Petroleum gas is a mixture of ethane, propane and butane. What is its major constituents?
Bleaching powder is manufactured by using
Which of the following is a weak acid?
Freon is used as
Who discovered electrons?
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