Question

Which product is formed when silicon tetrachloride reacts with water.
A.\[{\mathbf{Si}}{{\mathbf{O}}_2}\] and $HCl$
B.\[{\mathbf{S}}{{\mathbf{i}}_2}{{\mathbf{O}}_3}\] and $HCl$
C.\[{\mathbf{S}}{{\mathbf{i}}_3}{{\mathbf{O}}_4}\] and $HCl$
D.None

Answer 1

Hint:Silicon tetrachloride is an inorganic compound having chemical structure similar to that of Methane that is tetrahedral. Though it does not react as methane, it will produce an oxide with the same number of silicone in its formula. You can see it by balancing the equation.

Complete step by step answer:
Silicon tetrachloride with chemical formula \[SiC{l_4}\]. It is also known or named as Tetra Chlorosilane. It should be covered as it is a volatile liquid and this colourless. It is a very useful inorganic compound used for commercial application. It is used in the production of pure silicon and silica. It has a tetrahedral structure same as that of Methane. Its IUPAC name is silicon(IV) chloride. It is soluble in benzene, toluene , chloroform, ether and water.
Now, hydrolysis of Silicon tetrachloride is an important reaction to study. Though similar in structure with methane, it does not react with water in the manner of methane and does not yield alcohol under certain conditions. Silicon tetrachloride reacts with water readily.
Now, we do not need to introduce water molecules in it as the Silicon tetrachloride liquid is volatile in nature. It evaporates and combines with the moisture already present in the air to give a cloud gas resulting in formation of $HCl$ gas. This reaction results in the formation of one molecule of Silicon dioxide and four molecules of hydrochloric acid on balancing the reaction, produced by one molecule of Silicon tetrachloride and two molecules of water.
\[SiC{l_4} + {H_2}O \to Si{O_2} + 4HCl\]
Therefore the answer of this question is \[{\mathbf{Si}}{{\mathbf{O}}_2}\] and $HCl$.

Hence, option A is correct.

Note:
There are several uses of Silicon tetrachloride, it is used to produce polysilicon where it acts as an intermediate. Optical fibre is manufactured using a silicon tetrachloride, which is high purity content. Also it can be oxidized to form the pure silica, when oxygen is passed through it.