At 25oC and 1 atm pressure most of the elements are solid, the exception being the 11 elements that are gases and 2 that are liquids. What are the 2 elements which are liquid?
A
Hg and Br
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B
Hg and I
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C
Ag and Kr
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D
Au and Kr
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E
Pt and Co
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Solution
The correct option is AHg and Br Mercury (Hg) and bromine (Br2) are liquids at 250C and 1atm.