which of the following halogens is liquid at room temperature

2. Which of the following halogens is liquid at room temperature?
(a) Chlorine
(b) Fluorine
(c) Iodine
(d) Bromine

Dear student, 
Bromine is the only non-metal which is present in the liquid state at room temperature. This Bromine is the halogen which is liquid at room temperature. 
Regards. 

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