Embibe Experts Solutions for Chapter: Solved Chemistry Paper-1, Exercise 1: Exercise

Mention the reason for not using hydrogen as a reducing agent in metallurgy.

Extraction of gold and silver involves leaching the metal with ${\mathrm{CN}}^{-}$ ion. The metal is recovered by ________________.

Which of the following is not an example of roasting?

Oxidation state of carbon in its hydrides

Which is oxidized in air?

The basic character of the transition metal monoxides follows the order
(Atomic numbers- $\mathrm{Ti}=22, \mathrm{V}=23, \mathrm{Cr}=24, \mathrm{Fe}=26$)

Identify the complex compound which exhibits meridional isomerism.

Reaction $3{\mathrm{ClO}}^{\mathrm{-}}\stackrel{}{\to }{\mathrm{ClO}}_3^{-}+2{\mathrm{Cl}}^{\mathrm{-}}$ occurs in the following two steps:

$\mathrm{i}$. ${\mathrm{ClO}}^{\mathrm{-}}+{\mathrm{ClO}}^{\mathrm{-}}\stackrel{{\mathrm{k}}_1}{\to }{\mathrm{ClO}}_2^{-}+{\mathrm{Cl}}^{\mathrm{-}} \text{(Slow step)}$

$\mathrm{ii}$. ${\mathrm{ClO}}_2^{-}+{\mathrm{ClO}}^{\mathrm{-}}\stackrel{{\mathrm{k}}_2}{\to }{\mathrm{ClO}}_3^{-}+{\mathrm{Cl}}^{\mathrm{-}} \text{(Fast step)}$

The rate of given reaction equal to: