JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Which of the following metals is most reactive towards water?

(A)Na
(B)K
(C)Rb
(D)CsCorrect

Answer: (D)

Solution

Reactivity of alkali metals with water increases down the group as ionisation energy decreases and the metal loses its electron more easily. Among Na, K, Rb and Cs, caesium has

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Question ID VK-137585