Important Properties of Compounds of Iron

Complete the following reaction:

$2{\mathrm{FeSO}}_4 \stackrel{∆}{\to } {\mathrm{Fe}}_2{\mathrm{O}}_3 +$_____$+{\mathrm{SO}}_3$

$\mathrm{A}: {\mathrm{Fe}}_3{\mathrm{O}}_4$     $\mathrm{B}: {\mathrm{CO}}_2$     $\mathrm{C}: {\mathrm{SO}}_2$

Enter your correct answer as $\mathrm{A}$, $\mathrm{B}$, or $\mathrm{C}$.

The chemical formula of ferrous sulphate is _____.

Brown coloured gas is evolved when ferrous sulphate is heated.

Which chemical reaction correctly represents the reaction between iron and dilute ${\mathrm{H}}_2{\mathrm{SO}}_4$?

What happens when iron reacts with dilute sulphuric acid?

Which one of the following gives mixture of ${\mathrm{SO}}_2$ and ${\mathrm{SO}}_3$ on heating?

On heating of a sulfate of metal 'A'  evolves two gases B, C and an oxide D. Gas B turns ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ paper green while gas 'C' forms a trimmer in which there is non S-S bond. Compound D with $\mathrm{HCl}$ forms a Lewis acid E which exists as dimer. What are the compounds A to E respectively?

In chemical reaction of potassium ferrocyanide and hydrogen peroxide in the presence of dil. ${\mathrm{H}}_2\mathrm{S}{\mathrm{O}}_4$

At $300^{\mathrm{o}}\mathrm{C},\mathrm{ }\mathrm{F}\mathrm{e}\mathrm{C}{\mathrm{l}}_3$

The chemical formula of Prussian blue is formed by the reaction of ferric ion and ferrocyanide is

Fool’s gold is:

The sum of $\text{pπ}-\text{dπ}$ bonds in the gases obtained by strong heating of ferrous sulphate is :

The prosthetic group haemoglobin is

The correct statement in respect of protein haemoglobin is that it

Green vitriol is

Ferrous sulphate $(\mathrm{F}\mathrm{e}\mathrm{S}{\mathrm{O}}_4.7{\mathrm{H}}_2\mathrm{O})$ is known as

Which of the following statement(s) is/are incorrect regarding chloride of iron?

An inorganic compound on strong heating gives a black-brown powder and two oxides of sulphur. The powder was dissolved in $\mathrm{HCl}$ when a yellow solution was obtained which gave a blood-red coloured solution with thiocyanide ions. Then, the inorganic compound will be

An inorganic compound on strong heating gave a blackish brown powder and two oxides of sulphur. The powder was dissolved in HCl when a yellow solution was obtained which gave blood red coloured solution with thiocyanide ions.
The inorganic compound may be :

An inorganic compound on strong heating gave a blackish brown powder and two oxides of sulphur. The powder was dissolved in HCl when a yellow solution was obtained which gave blood red coloured solution with thiocyanide ions.
The inorganic compound may be :