Which one of the following has the similar physical state with water a

Which one of the following has the similar physical state with water at room temperature?

Iodine

Bromine

Chlorine

Fluorine

Answer is Right!

Answer is Wrong!

This question was previously asked in

UPSC Geoscientist – 2020

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Room temperature is typically considered to be around 20-25°C. Water (H₂O) is a liquid at this temperature range and standard atmospheric pressure. Let’s examine the physical states of the given halogens (Group 17 elements) at room temperature:
A) Iodine (I₂) is a dark purple-black solid at room temperature.
B) Bromine (Br₂) is a reddish-brown liquid at room temperature. It is one of the few elements that are liquid under standard conditions.
C) Chlorine (Cl₂) is a yellowish-green gas at room temperature.
D) Fluorine (F₂) is a pale yellow gas at room temperature.
Comparing these states, Bromine (liquid) has a similar physical state to water (liquid) at room temperature.

At room temperature (20-25°C) and standard pressure, water is a liquid. Among the given halogens, only Bromine is a liquid.

The physical states of the halogens at room temperature follow a trend based on increasing molecular size and thus increasing strength of London dispersion forces: Fluorine (gas), Chlorine (gas), Bromine (liquid), Iodine (solid), Astatine (solid, highly radioactive). This trend relates to their boiling points and melting points.

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