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Chapter 13: Problem 94

Hydrolysis of silicon tetrachloride gives (1) orthosilicic acid (2) metasilicic acid (3) parasilicic acid (4) silica

Short Answer

Expert verified
The hydrolysis of silicon tetrachloride gives silica.

Step by step solution

01

Understanding Silicon Tetrachloride

Silicon tetrachloride (SiCl鈧�) is a chemical compound that reacts with water. Understanding this compound and its reaction with water is crucial for determining the product of hydrolysis.
02

Definition of Hydrolysis

Hydrolysis is a chemical reaction where water breaks down another compound. In this case, water will react with silicon tetrachloride.
03

Writing the Hydrolysis Reaction

Write the balanced chemical equation for the hydrolysis of silicon tetrachloride: SiCl鈧� + 2H鈧侽 鈫� SiO鈧� + 4HCl
04

Identify the Product

From the balanced chemical equation, the products are silicon dioxide (SiO鈧�) and hydrochloric acid (HCl). The focus here is on silicon dioxide (SiO鈧�).
05

Understanding the Product

Silicon dioxide (SiO鈧�) is commonly known as silica. Thus, the hydrolysis of silicon tetrachloride yields silica.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Silicon Tetrachloride
Silicon tetrachloride (SiCl鈧�) is an important chemical compound in various industrial processes. It is a colorless, volatile liquid that reacts vigorously with water. This compound is commonly used in the production of high-purity silicon, which is crucial for the semiconductor industry. SiCl鈧� is also employed to produce silica and other silicon-based materials. Whenever you see a reaction involving SiCl鈧�, be prepared for it to involve significant changes, especially when mixed with water.
Hydrolysis Reaction
Hydrolysis is a chemical reaction where a water molecule breaks down another compound. The term comes from the Greek words 'hydro' (water) and 'lysis' (to break down). In the case of silicon tetrachloride, when it reacts with water, a significant transformation occurs:

  • SiCl鈧� + 2H鈧侽 鈫� SiO鈧� + 4HCl

In this balanced chemical equation, each molecule of SiCl鈧� requires two molecules of water to react. The end products of this reaction are silicon dioxide (SiO鈧�) and hydrochloric acid (HCl). The SiO鈧� produced is essentially pure silica, while the HCl is a byproduct.
Silicon Dioxide
Silicon dioxide (SiO鈧�), often referred to as silica, is a naturally occurring mineral found in sand, quartz, and various living organisms. It is widely used in the manufacturing of glass, ceramics, and as a major component in cement. In the context of the hydrolysis reaction, SiO鈧� appears as an end product when silicon tetrachloride reacts with water. This reaction showcases how a liquid (SiCl鈧�) transforms into a solid (SiO鈧�) via a chemical process.

In summary:
  • Silicon tetrachloride reacts with water
  • Products: Silicon dioxide (SiO鈧�) and Hydrochloric acid (HCl)

Thus, if asked which product results from the hydrolysis of silicon tetrachloride, the correct answer is silica (SiO鈧�).

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Most popular questions from this chapter

Which of the following statements is falsc? (1) Diamond and graphitc have different lattice structures. (2) Diamond is the purest form and graphite is the impurc form of carbon. (3) Diamond can be used as an abrasive while graphite can be used as a lubricant. (4) Both on burning in air give \(\mathrm{CO}_{2}\).

Germanium (II) compounds are powerful reducing agents while lead (IV) compounds are oxidants. It can be due to (1) Lead is more electropositive than germanium. (2) The ionization potential of lead is less than that of germanium. (3) The ionic radii of \(\mathrm{Pb}^{2+}\) and \(\mathrm{Pb}^{4+}\) are larger than that of \(\mathrm{Ge}^{2+}\) and \(\mathrm{Ge}^{4+}\). (4) More pronounced inert pair effect in lead than in germanium.

The elements which forms neutral as well as acidic oxide is (1) Sn (2) \(\mathrm{Si}\) (3) \(\mathrm{C}\) (4) \(\mathrm{Pb}\)

Which of the following properties of silica is used in making optical instruments? (1) Its hardness. (2) Red hot quartz glass does not break when plunged into water. (3) Its transparency to UV light. (4) Both 2 and 3

Which of the following statements is false? (1) Electronegativity values of \(\mathrm{Si}\), Ge, Sn and \(\mathrm{Pb}\) are equal. (2) Electronegativity of carbon is greater than silicon. (3) Density of silicon is more than that of carbon (diamond). (4) The atomic radius of \(\mathrm{Si}\) is greater than that of carbon.
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