Which of the following gases is used to prevent food material from getting oxidised?
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Two or more elements combine to form a
Which of the following metals is a liquid at room temperature?
Which of the following is NOT a radioactive element?
If the first and third members of a Dobereiner triad are Phosphorous and Antimony, the second member of this triad is
Choose the one which is different or odd from the following.
The smell that we get when LPG cylinder leaks is due to the presence of
Which of the following is NOT the combined from of carbon?
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