Chemistry - Complete s-block Question with Solution | TestHub
ChemistryComplete s-blocks-block IAEasy2 minPYQ_2026
ChemistryEasysingle choice
Which of the facts regarding the trend of reactivity of alkali metals down the group is correct?
Options:
Answer:
A
Solution:
As we move down the group of alkali metals, new electron shells are added, which leads to an increase in the atomic radius.
Due to the increased distance between the nucleus and the outermost electron, the effective nuclear charge on the valence electron decreases. This results in a decrease in the ionization enthalpy.
Because it becomes easier to remove the outermost electron, the reactivity of alkali metals increases down the group.
Answer: Increasing atomic radius and decreasing ionization enthalpy.
Stream:MHT_CET_MEDICALSubject:ChemistryTopic:Complete s-blockSubtopic:s-block IA
⏱ 2mℹ️ Source: PYQ_2026
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