Sulphuric Acid: Preparation, Properties and Uses

The element evolving two different gases on reaction with conc. sulphuric acid is

When $\mathrm{Cu}$ is reacted with hot concentrated solution of ${\mathrm{H}}_2{\mathrm{SO}}_4$ then the gas obtained is

${\mathrm{H}}_2{\mathrm{SO}}_4$ in aqueous medium ionises in two steps.

${\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{aq}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{I}\right)⟶{\mathrm{H}}_3{\mathrm{O}}^{+}\left(\mathrm{aq}\right)+{\mathrm{HSO}}_4^{-}\left(\mathrm{aq}\right),{\mathrm{K}}_{{\mathrm{a}}_1}=\mathrm{x}$

${\mathrm{HSO}}_4{}^{-}(\mathrm{aq})+{\mathrm{H}}_2\mathrm{O}(\mathrm{I})⟶{\mathrm{H}}_3{\mathrm{O}}^{+}(\mathrm{aq})+{\mathrm{SO}}_4{}^{2-},{\mathrm{K}}_{{\mathrm{a}}_2}=\mathrm{y}$

What is relation between $\mathrm{x}$ and $\mathrm{y} ?$

In the contact process of manufacturing of ${\mathrm{H}}_2{\mathrm{SO}}_4,$ the catalyst used is

On heating oxalic acid with ${\mathrm{H}}_2{\mathrm{SO}}_4$, we get

On addition of concentrated ${\mathrm{H}}_2{\mathrm{SO}}_4$ to a chloride salt, colourless fumes are evolved but in case of an iodide salt, violet fumes come out. This is because

Moist hydrogen cannot be dried over concentrated ${\mathrm{H}}_2{\mathrm{SO}}_4$ because it:

Industrially sulphuric acid is manufactured by-

Common name of concentrated sulphuric acid is-

When _____ solution is added in potassium sulphate solution a _____ precipitate  is formed.

Moist hydrogen cannot be dried over concentrated ${\mathrm{H}}_2{\mathrm{SO}}_4$ because it:

What is the purpose of Contact Process?

On addition of concentrated ${\mathrm{H}}_2{\mathrm{SO}}_4$ to a chloride salt, colourless fumes are evolved but in case of an iodide salt, violet fumes come out. This is because

Assertion : $\mathrm{HCOOH}$ formic acid reacts with ${\mathrm{H}}_2{\mathrm{SO}}_4$ form $\mathrm{CO}$.

$\mathrm{Reason} :$ ${\mathrm{H}}_2{\mathrm{SO}}_4$ is a mild (moderate) oxidizing agent. 

The following questions consist of two statements one labelled $\mathrm{ASSERTION} \left(\mathrm{A}\right)$ and the another labelled $\mathrm{REASON} \left(\mathrm{R}\right)$. Select the correct answers to these questions from the codes given below:

$\mathrm{Assertion} :$ Sulphuric acid is less viscous than water due to intermolecular hydrogen bonding.

$\mathrm{Reason} :$ Concentrated sulphuric acid is used as dehydrating agent.

The following question consists of two statements one labelled ASSERTION $\left(\mathrm{A}\right)$ and the another labelled REASON $\left(\mathrm{R}\right)$. Select the correct answer to the question from the codes given below:

Assertion: In contact process of the manufacture of ${\mathrm{H}}_2{\mathrm{SO}}_4$, conversion of ${\mathrm{SO}}_2$ to ${\mathrm{SO}}_3$ by the reaction with oxygen, takes place in the presence of a catalyst ${\mathrm{V}}_2{\mathrm{O}}_5$.

Reason: The reaction which involves the conversion of ${\mathrm{SO}}_2$ to ${\mathrm{SO}}_3$, is exothermic, reversible, and the forward reaction leads to a decrease in volume.

About ${\mathrm{H}}_2{\mathrm{SO}}_4$ which is incorrect?

The following catalyst is used in the manufacturing of sulphuric acid by lead chamber process.

A metal which displaces hydrogen from dilute sulphuric acid.

A solution which forms white precipitate when treated with dilute ${\mathrm{H}}_2{\mathrm{SO}}_4$.