Atomic number of which of the following elements is greater than that of Fluorine?
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Which among the following is used to generate light, to weld metals?
The depletion in Ozone layer is caused by ___________ .
Which is known as carbolic acid?
Which of the following elements has the lowest melting point?
______ character of a bond between two atoms is greater if the difference in their electro negativities is lesser.
____ is not an allotrope of carbon.
_____ is produced from incomplete burning of fuels such as petrol and diesel.
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