The s-Block Ele...

Alkali metals react with water vigorously to form hydroxides and dihydrogen. Which of the following alkali metals reacts with water least vigorously?

Which of the following is not a similarity of beryllium with aluminium? 

Dehydration of hydrates of halides of calcium, barium and strontium i.e., $$CaCl_2.6H_2O,BaCl_2.2H_2O,SrCl_2.2H_2O$$ can be achieved by heating. These become wet on keeping in the air. Which of the following statements is correct about these halides?

Metal carbonates decompose on heating to give metal oxide and carbon dioxide. Which of the metal carbonates is most stable thermally?

$${Be}_{2}C+4{H}_{2}O\longrightarrow 2X+{CH}_{4}$$
$$X+2OH\longrightarrow Y$$
(X) and (Y) formed in the above two reactions are :

The solubility of metal halides depends on their nature, lattice enthalpy and hydration enthalpy of the individual ions. Amongst fluorides of alkali metals, the lowest solubility of LiF in water is due to:

When $$LiNO_{3}$$ is heated, it gives oxide, $$Li_{2}O$$, whereas other alkali metal nitrates decompose to give corresponding :

The main constituents of pearl are:

Amphoteric hydroxides react with both alkalies and acids. Which of the following Group 2 metal hydroxides is soluble in sodium hydroxides?

Which of the following is used as a sources of hydrogen for filling of balloons that is convenient and can be carried around?