Embibe Experts Solutions for Chapter: The s-block Elements, Exercise 1: Level 1

Which one of the following samples of metals can produce the most hydrogen by reacting with water?                        

In which of the following is the ratio of the sizes of cation to anion the smallest?
                                                                                                     

The suspension of slaked lime in water is known as  

 Which of the following species do NOT exist? 

Which of the following is most electropositive? 

An alkali metal $\left(\mathrm{M}\right)$ reacts with ammonia to form amide$\left({\mathrm{MNH}}_2\right).$
$2\mathrm{M} + 2{\mathrm{NH}}_3 \underset{}{\overset{}{\to }} 2{\mathrm{MNH}}_2 + {\mathrm{H}}_2$
The reaction does NOT hold true when $\mathrm{M}$ is ________. 

An element having electronic configuration $1{\mathrm{s}}^2 2{\mathrm{s}}^2 2{\mathrm{p}}^6 3{\mathrm{s}}^2 3{\mathrm{p}}^6 4{\mathrm{s}}^1$ will form _______.

Which of the following pair of elements do not show diagonal relationship?