Embibe Experts Solutions for Chapter: The p-Block Elements, Exercise 2: EXERCISE-2

Which of the following pairs of halogens have approximately identical bond energy ?

Which of the following pairs of nitrates gives the same gaseous products on thermal decomposition?

An inorganic salt $\left(\mathrm{A}\right)$ is decomposed at about $523 \mathrm{K}$ to give products $\left(\mathrm{B}\right)$ and $\left(\mathrm{C}\right)$. compound $\left(\mathrm{C}\right)$ is a liquid at room temperature and is neutral to litmus paper while oxide $\left(\mathrm{B}\right)$ on burning with white phosphorous, given a dehydrating agent $\left(\mathrm{D}\right)$. compounds $\left(\mathrm{A}\right), \left(\mathrm{B}\right), \left(\mathrm{C}\right)$ and $\left(\mathrm{D}\right)$ will be identified as -

When fluoride is heated with conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$ and ${\mathrm{MnO}}_2$ the gas evolved is -

Conc. ${\mathrm{HNO}}_3$ is yellow coloured liquid due to -

When chlorine gas is passed through an aqueous solution of a potassium halide in the presence of chloroform, a violet colouration is obtained. On passing more of chlorine water, the violet colour is disappeared and solution becomes colourless. This test confirms the presence of ............ in aqueous solution. -

Which of the following oxide(s) gives brown ppt on reaction with conc. ${\mathrm{HNO}}_3$ :

Which of the following reaction produces ${\mathrm{PH}}_3$ :