S-block elements practice · Medium

Which of the following is not the correct order of property indicated?

A: ${{Be}({OH})}_2$ dissolves in excess of ${NaOH}$

R: ${{Be}({OH})}_2$ is an amphoteric compound.

Assertion (A) : Ether can extract ${LiCl}$ from the aqueous solution of a mixture of ${LiCl}, {NaCl}$ and ${KCl}$.

Reason (R): Hydration of ${Li}^{+}$ion is greater than that of ${Na}^{+}$and ${K}^{+}$ions.

A fire work gave brick red colour. It probably contained a salt of ${C}$

In which of the following, sodium carbonate is not used?

Assertion (A): When $\mathrm{CO}_2$ is continuously bubbled through lime water a precipitate is formed which later dissolves.
Reason (R): Calcium carbonate is initially, formed which reacts further with carbon dioxide to form calcium carbonate

Which out of the following compounds is called photographer’s fixer?

$\mathrm{CO}_2$ gas along with solid $(\mathrm{Y})$ is obtained when sodium salt $(\mathrm{X})$ is heated. $(\mathrm{X})$ is again in obtained when $\mathrm{CO}_2$ gas is passed into aqueous solution $\mathrm{(Y). (X)}$ and $\mathrm{(Y)}$ respectively, are

Which of the following statements is false for alkali metals?

Which of the following reaction does not take place:

Which of the following compounds has the
highest hydration energy?

Statement-I : Exhausted permutit can be
regenerated by adding $10\% \,CaC{l_2}$.

Statement-II : Calgon forms soluble
complexes with cations which are causing
hardness to water.

Alkaline earth metals are denser than alkali metals, because metallic bonding in alkaline earth’s metal is

Which one of the following ionic solids has the highest lattice energy?

The byproduct of Solvay process is:

The raw materials in Solvay process are:

A: Lime water turns milky when ${CO}_2$ is passed into it. With excess ${CO}_2$, the milkiness disappears.

R: Group 2 metal carbonates are insoluble but bicarbonates are soluble.

Sodium carbonate reacts with $\mathrm{S}{\mathrm{O}_2}$ in aqueous solution to give:

Which gives apple green colour in fireworks?

The molecular formula of Plaster of paris is:

Assertion (A) : Divalent compounds of alkaline earth metals are diamagnetic.

Reason (R) : $M^{2+}$ ions of group 2 have noble gas configuration.

What is the correct order of density of IIA group :

A metal $X$ on heating in nitrogen gas gives $Y . Y$ on treatment with ${H}_2 {O}$ gives a colourless gas which when passed through ${CuSO}_4$ solution gives a blue colour, ${Y}$ is

Which order is NOT correct

If $X({OH}>{Y}({OH})$ (acidic strength) ' $X$ ' $\&$ ' $Y$ ' both belong to same group then select the correct statement.

The most electropositive element in alkali metals, is

Which is quick lime?

Chlorine cannot displace

A: The first elements of I and II groups, lithium and beryllium differ in some of the chemical properties with other elements of their respective groups.

R: The first element of every group is very small in size, possesses high electronegative value and has only '$S$' and '$P$' orbitals in its valence orbital.

Causticisation is a process in which