Which of the following is a non-metal that is a LIQUID at room temperature?
A{'text': 'Bromine', 'label': 'A'}
B{'text': 'Chlorine', 'label': 'B'}
C{'text': 'Iodine', 'label': 'C'}
D{'text': 'Sulphur', 'label': 'D'}
Answer & Solution
Correct answer: A. {'text': 'Bromine', 'label': 'A'}
1. Most non-metals are gases (H₂, O₂, N₂, Cl₂) or solids (S, P, C, I₂) at room temperature.
2. Bromine (Br₂) is the ONLY non-metal that is liquid at room temperature (25 °C).
3. Chlorine is a gas; iodine and sulphur are solids.
4. Mercury (Hg) is the only metal that is liquid at room temperature.
_Source: NCERT Class 10 Science, Ch 3 "Metals and Non-metals", §3.1_
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