The s-Block Ele...

Which of the following compound is used in gun powder?

Sodium is heated in air at $$350^oC$$ to form $$X, X$$ absorbs $$CO_2$$ and forms sodium carbonate and $$Y$$. Which of the following is $$Y$$?

Beryllium and aluminium exhibit many properties that are similar. But the two element differ in:

Pick out statement (s) which is (are) not true about the diagonal relationship of $$Li$$ and $$Mg$$:
$$A.$$ Polarising powers of $$Li^{+}$$ and $$Mg^{2+}$$ ions are almost same.
$$B.$$ Like $$Li, Mg$$ decomposes water very fast.
$$C.$$ $$LiCl$$ and $$MgCl_{2}$$ are deliquescent.
$$D.$$ Like $$Li, Mg$$ readily reacts with liquid bromine at ordinary temperature.

The correct order if mobility of alkali metal ions in aqueous solution is:

Match the compounds given in $$(X)$$ with their uses in $$(Y)$$

Which of the following does not illustrate the anomalous behaviour of lithium?

Consider the cations, $$Li^+, Be^{2+}, K^+ $$ and $$Al^{3+}$$. The largest and the smallest ions from this list are respectively:

The set representing the correct order of ionic radius is: 

Which among the following is least soluble in water?