P Block Elements - Inorganic Chemistry - Chemistry Previous Year Questions

$\left[\mathrm{Al}(\mathrm{OH})_6\right]^{3-}+3 \mathrm{HCl}$

$\mathrm{Al}_2 \mathrm{O}_3+6 \mathrm{HCl}$

$\left[\mathrm{Al}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}+3 \mathrm{Cl}^{-}$

$\mathrm{Al}^{3+}+3 \mathrm{Cl}^{-}$

$\mathrm{SeCl}_2 \quad \mathrm{SeCl}_3$

$\mathrm{SeCl}_4 \quad \mathrm{SeCl}_2$

$\mathrm{SeCl}_4 \quad \mathrm{Se}$

$\mathrm{SeCl}_4 \quad \mathrm{Se}_2$

0

1

2

3

$\mathrm{HIO}>\mathrm{HBrO}>\mathrm{HClO}$

$\mathrm{HBrO}>\mathrm{HIO}>\mathrm{HClO}$

$\mathrm{HClO}>\mathrm{HBrO}>\mathrm{HIO}$

$\mathrm{HIO}>\mathrm{HClO}>\mathrm{HBrO}$

$\mathrm{C}>\mathrm{Ge}>\mathrm{Pb}$

$\mathrm{Ge}>\mathrm{C}>\mathrm{Pb}$

$\mathrm{Pb}>\mathrm{C}>\mathrm{Ge}$

$\mathrm{C}>\mathrm{Pb}>\mathrm{Ge}$

$\mathrm{NO}_2^{-}(\mathrm{aq})+\mathrm{NH}_4^{+}(\mathrm{s}) \xrightarrow{\Delta}$

$\mathrm{CO}\left(\mathrm{NH}_2\right)_2(\mathrm{~s})+\mathrm{HNO}_2(l) \longrightarrow$

$\mathrm{NH}_3(\mathrm{~g})+\mathrm{NaOCl}(\mathrm{aq}) \xrightarrow{\text { Gelatine }}$

$\left(\mathrm{NH}_4\right)_2 \mathrm{Cr}_2 \mathrm{O}_7(\mathrm{~s}) \xrightarrow{\Delta}$

$\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{~S}=\mathrm{H}_2 \mathrm{Se}=\mathrm{H}_2 \mathrm{Te}$

$\mathrm{H}_2 \mathrm{O}<\mathrm{H}_2 \mathrm{~S}<\mathrm{H}_2 \mathrm{Se}<\mathrm{H}_2 \mathrm{Te}$

$\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{Te}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{~S}$

Fluorspar

Cryolite

Fluoroapatite

Carnallite

He

Ar

Kr

Xe

$\mathrm{H}_2$

$\mathrm{O}_2$

$\mathrm{D}_2$

$\mathrm{O}_3$

$A, B, C$

A and B only

B and C only

A and C only

$\mathrm{C}>\mathrm{Ge}>\mathrm{Si}$

$\mathrm{Si}>\mathrm{C}>\mathrm{Ge}$

$\mathrm{C}>\mathrm{Si}>\mathrm{Ge}$

$\mathrm{Si}>\mathrm{Ge}>\mathrm{C}$

C and D only

A and B only

A and D only

B and C only

$\mathrm{N}_2$ is a brown coloured gas.

$\mathrm{O}_3$ is thermodynamically stable compared to oxygen.

Rhombic sulphur is stable at room temperature.

$\mathrm{Cl}_2$ is a colourless gas.

$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_5$

$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_4$

$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_7$

$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_8$

$\mathrm{Sn}^{+4}$ is reducing agent but $\mathrm{Pb}^{+4}$ is an oxidising agent.

$\mathrm{Sn}^{+4}$ is an oxidising agent but $\mathrm{Pb}^{+2}$ is a reducing agent.

$\mathrm{Sn}^{+2}$ is reducing agent but $\mathrm{Pb}^{+4}$ is an oxidising agent.

$\mathrm{Sn}^{+2}$ is an oxidising agent but $\mathrm{Pb}^{+4}$ is reducing agent.

$\mathrm{B}, \mathrm{Ga}$

$\mathrm{B}, \mathrm{Al}$

AI, In

$\mathrm{B}, \mathrm{TI}$