Ozone is represented as _____.
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____ is not an allotrope of carbon.
Highest percentage of carbon is found in which form of coal?
Which of the following elements has the lowest melting point?
Atomic number of which of the following elements is greater than that of Magnesium
The poisonous gas accidentally released in Bhopal Gas Tragedy is
_____ is the major component of natural gas.
Which molecule contains a polar covalent bond?
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