Question

Choose the alkaline earth metal among the following.
Na, Ca, Ba, Cs, Be, Li

• A. Na, Cs and Li
• B. Ca, Ba, and Be
• C. Na, Cs and Be
• D. Ca, Ba, and Cs

Answer 1

The correct option is B Ca, Ba, and Be

Group 1 elements are collectively known as the Alkali metals i.e. Li, Na, K, Rb, Cs, Fr. They form strongly alkaline hydroxides with water.
Group 2 elements are collectively known as the Alkaline earth metals i.e. Be, Mg, Ca, Sr, Ba, Ra. Their oxides & hydroxides are alkaline in nature & these metal oxides are found in the earth’s crust.
Hence correct option is b.