alleryWhich of the following elements is NOT a noble gas?
ABromine
BNeon
CHelium
DKrypton
Answer & Solution
Correct answer: A. Bromine
1. Noble gases occupy Group 18 of the periodic table.
2. Neon, helium and krypton are all noble gases.
3. Bromine is a halogen (Group 17), so it is not a noble gas.
_Source: RRB Group D (RRC) PYQ, held 27-10-2013, Q.80._
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