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Question

Which of the following pair of the elements are liquids at 25 and 1atm pressure?
  1. Hg and I
  2. Au and Kr
  3. Pt and Co
  4. Ag and Kr
  5. Hg and Br

A
Hg and Br
B
Pt and Co
C
Hg and I
D
Au and Kr
E
Ag and Kr
Solution
Verified by Toppr

Two elements which are liquid at room temperature (298 K) and 1 atm pressure are :

1. Bromine (Br), a reddish-brown liquid with a suffocating odour, melts at 265.9 K.

2. Mercury (Hg), a toxic metal, melts at 234.32 K.

Hence the correct option is A.

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