(1) Which of the one is monoatomic element ?
(ii) Which of the one has five atoms in its molecule ?
(iii) Name any diatomic gas shown above. (iv) Any polyatomic molecule.
(v) What is the formula of methane ?
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answer: N2 is diatomic
P4 and S8 are polyatomic gas.
Ch4 is the formula of methane.
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