Chemistry · Oct / Nov 2024 · Paper 11 · Question 24
Element X is in Group I. Some statements about element X are given. ● X is not the least dense element in Group I. ● X is more reactive than potassium. ● X has an Ar value less than 100. Which element is X?
- Alithium
- Bsodium
- Crubidium
- Dcaesium
As printed in the paper
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Correct answer: C. rubidium
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