Which of the following chemical reactions is correctly shown aqua-regia dissolving in gold?
A.$Au + 2\left[ {Cl} \right] \to AuC{l_2}\xrightarrow{{HCl}}{H_2}\left[ {AuC{l_4}} \right]$
B.$Ag + 3\left[ {Cl} \right] \to AgC{l_3}\xrightarrow{{HCl}}H\left[ {AgC{l_4}} \right]$
C.$Au + 3\left[ {Cl} \right] \to AuC{l_3}\xrightarrow{{HCl}}H\left[ {AuC{l_4}} \right]$
D. $Ag + 2\left[ {Cl} \right] \to AgC{l_2}\xrightarrow{{HCl}}{H_2}\left[ {AgC{l_4}} \right]$
Answer
283.5k+ views
Hint: We have to know that water Regia is a yellow-orange (now and then red) seething fluid, so named by chemists since it can break up the respectable metals gold and platinum, however not all metals. Water Regia is basically used to create chloroauric corrosive, the electrolyte in the Wohlwill interaction for refining the greatest ( $99.999\% $ ) gold.
Complete answer:
We have to see the water regia breaks down gold, albeit neither constituent corrosive will do so alone. Nitric corrosive is an amazing oxidizer, which will really break up a practically imperceptible measure of gold, framing gold particles ( $A{u^{3 + }}$ ). The hydrochloric corrosive gives a prepared inventory of chloride particles ( $C{l^ - }$ ), which respond with the gold particles to create tetrachloroaurate( $III$ ) anions, additionally in an arrangement. The response with hydrochloric corrosive is a harmony response that favors the arrangement of chloro-urate anions ( $AuC{l^{4 - }}$ ). This outcome, in the expulsion of gold particles from the arrangement, permits further oxidation of gold to occur. The gold disintegrates to become chloro-uric corrosive. Then, the gold might be broken up by the chlorine present in the water regia.
Water regia is a combination of nitric corrosive and hydrochloric corrosive, ideally in a molar proportion of $1:3$. Water regia is a yellow-orange raging fluid. It can disintegrate the honorable metals gold and platinum.
Therefore, Option (C) $Au + 3\left[ {Cl} \right] \to AuC{l_3}\xrightarrow{{HCl}}H\left[ {AuC{l_4}} \right]$ is correct.
Note:
We have to know the water regia is additionally utilized in scratching and in explicit logical methods. It is likewise utilized in certain labs to clean china of natural mixtures and metal particles. This technique is liked among most preposterous customary chromic corrosive showers for cleaning NMR tubes in light of the fact that no hints of paramagnetic chromium can stay to ruin spectra. While chromic corrosive showers are debilitated as a result of the great harmfulness of chromium and the potential for blasts, water regia is itself destructive and has been ensnared in a few blasts due to misusing.
Complete answer:
We have to see the water regia breaks down gold, albeit neither constituent corrosive will do so alone. Nitric corrosive is an amazing oxidizer, which will really break up a practically imperceptible measure of gold, framing gold particles ( $A{u^{3 + }}$ ). The hydrochloric corrosive gives a prepared inventory of chloride particles ( $C{l^ - }$ ), which respond with the gold particles to create tetrachloroaurate( $III$ ) anions, additionally in an arrangement. The response with hydrochloric corrosive is a harmony response that favors the arrangement of chloro-urate anions ( $AuC{l^{4 - }}$ ). This outcome, in the expulsion of gold particles from the arrangement, permits further oxidation of gold to occur. The gold disintegrates to become chloro-uric corrosive. Then, the gold might be broken up by the chlorine present in the water regia.
Water regia is a combination of nitric corrosive and hydrochloric corrosive, ideally in a molar proportion of $1:3$. Water regia is a yellow-orange raging fluid. It can disintegrate the honorable metals gold and platinum.
Therefore, Option (C) $Au + 3\left[ {Cl} \right] \to AuC{l_3}\xrightarrow{{HCl}}H\left[ {AuC{l_4}} \right]$ is correct.
Note:
We have to know the water regia is additionally utilized in scratching and in explicit logical methods. It is likewise utilized in certain labs to clean china of natural mixtures and metal particles. This technique is liked among most preposterous customary chromic corrosive showers for cleaning NMR tubes in light of the fact that no hints of paramagnetic chromium can stay to ruin spectra. While chromic corrosive showers are debilitated as a result of the great harmfulness of chromium and the potential for blasts, water regia is itself destructive and has been ensnared in a few blasts due to misusing.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are

Which of the following would not be a valid reason class 11 biology CBSE

Why should electric field lines never cross each other class 12 physics CBSE

An electrostatic field line is a continuous curve That class 12 physics CBSE

What is meant by monosporic development of female class 11 biology CBSE

Draw labelled diagram of the following i Gram seed class 11 biology CBSE

Trending doubts
Which of the following Chief Justice of India has acted class 10 social science CBSE

Green glands are excretory organs of A Crustaceans class 11 biology CBSE

What if photosynthesis does not occur in plants class 11 biology CBSE

What is 1 divided by 0 class 8 maths CBSE

Fill the blanks with the suitable prepositions 1 The class 9 english CBSE

Difference Between Plant Cell and Animal Cell

10 slogans on organ donation class 8 english CBSE

Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE

What is the past tense of read class 10 english CBSE
