Question

Assertion: $SnC{{l}_{4}}$ is an orange colour solid.
Reason: The colour arises due to charge transfer.
A.Both assertion and reason are correct and the reason is the correct explanation for assertion.
B.Both assertion and reason are correct but the reason is not the correct explanation for assertion.
C.The assertion is correct but the reason is incorrect.
D.Both assertion and reason are incorrect.

Answer 1

Before answering this question, we should first know about $SnC{{l}_{4}}$. $SnC{{l}_{4}}$ is also known as Tin(IV) Chloride has other names as well that as tin tetrachloride and stannic chloride is an organic compound that is a colorless hygroscopic liquid when it comes in the contact with air causes fumes. It can be used as a precursor for the production of other tin compounds. Andreas Libavius discovered it, He was also known as spiritus fumans libavii.

Complete answer:
$SnC{{l}_{4}}$ can be prepared by the reaction of tin and chlorine gas at 115$^{\circ }C$.
$Sn+2C{{l}_{2}}\to SnC{{l}_{4}}$
There are many hydrates of tin tetrachlorides that are known. $SnC{{l}_{4}}.5{{H}_{2}}O$ known as butter of tin. It has $SnC{{l}_{4}}{{({{H}_{2}}O)}_{2}}$ molecules held together with different amounts of water of crystallization. The extra water molecules that are present link $SnC{{l}_{4}}{{({{H}_{2}}O)}_{2}}$ with the help of hydrogen bonds. Pentahydrate is the common hydrate and the lower ones have been mentioned too.
The orange color of $SnC{{l}_{4}}$-
The absorption of blue light causes the orange color $SnC{{l}_{4}}$. The reflected light contains a high proportion of red and orange. The transfer of electrons from I to Sn causes due to the energy absorption. Charge transfer spectra are the transfer of an electron to another atom is the transfer of charge.

So, Option (A) Both assertion and reason are correct and the reason is the correct explanation for assertion is correct.

Note:
Its uses are- $SnC{{l}_{4}}$ can be used as a precursor to organotin compounds, helps to stabilize polymers and can be used as a catalyst. In the preparation of $Sn{{O}_{2}}$ coatings by sol-gel process,$SnC{{l}_{4}}$ is used. The refinement of this method helps in the production of $Sn{{O}_{2}}$.