The s-Block Ele...

Identify the elements having same valence shell.

Why is $$LiF$$ almost insoluble in water whereas $$LiCl$$ is soluble not only in water but also in acetone?

Choose the correct answer form the alternatives given.
When alkaline earth metals dissolve in ammonia, they form coloured solution like alkali metals . Which of the following observations regarding the reaction are correct?
(i) Dilute solution are bright blue in colour due to solvated electrons.
(ii) These solutions decompose to form amides and hydrogen.
(iii) From this solution the ammoniates $$[M(NH_3)_6]^{2+}$$ can be recovered by evaporation.

Beryllium shows a diagonal relationship with aluminium. Which of the following similarity is incorrect?

Choose the correct answer form the alternatives given.
Which of the following compounds are not arranged in correct order as indicated?

What is the biological importance of $$Na^+$$ and $$K^+$$ ions in cell fluids like blood plasma?

A metal M reacts with nitrogen to give nitride which on reaction with water produces ammonia gas. Metal M can be:

Which among the following elements of group-$$2$$ exhibit anomalous properties?

Sulphates of Be and Mg are readily soluble in water but sulphates of Ca, Sr and Ba are insoluble. This is due to the fact that:

Beryllium and aluminium exhibit many properties which are similar. But, the two elements differ in: