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MHT CET202522 Apr 2025Morning ShiftChemistrys Block ElementsActual

Which of the following is not an alkali metal?

Options

  1. ALithium
  2. BPotassium
  3. CBeryllium
  4. DCaesium

Correct answer

C. Beryllium

Step-by-step solution

Alkali metals comprise Group 1 elements: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). Beryllium (Be) belongs to Group 2, classifying it as an alkaline earth metal rather than an alkali metal.

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