Which are the only two elements on the periodic table that are liquid at room temperature...? Mcqs

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Which are the only two elements on the periodic table that are liquid at room temperature...?

(A) Mercury and Bromine
(B) Carbon and helium

(C) Nitrogen and Hydrogen
(D) Oxygen and Neon

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Source: This question is taken from the Everyday Science

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Who created periodic table...?

(A) Faraday
(B) Lavoisier

(C) Arrhenius
(D) Mendeleev

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Source: This question is taken from the Everyday Science

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