Question:

Match the catalysts to the correct processes :

Updated On: Jul 29, 2024
  • $a(iii), b(ii), c(iv), d(i)$
  • $a(ii), b(i), c(iv), d(iii)$
  • $a(ii), b(iii), c(iv), d(i)$
  • $a(iii), b(i), c(ii), d(iv)$
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The Correct Option is B

Solution and Explanation

A Ziegler-Natta catalyst, named after Karl Ziegler and Giulio Natta, is a catalyst used in the synthesis of polymers of 1-alkenes (alpha-olefins). The catalyst $TiCl _{3}$ is used for Ziegler - Natta polymerization. The Wacker Oxidation is an industrial process, which allows the synthesis of ethanal from ethene by palladium-catalyzed oxidation with oxygen. The catalyst $PdCl _{2}$ is used for the Wacker process. The Deacon process is a process used during the manufacture of alkalis (the initial end product was sodium carbonate) by the Leblanc process. The catalyst $CuCl _{2}$ is used for Deacon's process. The contact process is the current method of producing sulfuric acid in the high concentrations needed for industrial processes. The catalyst $V_{2} O _{5}$ is used for the Contact process.
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Concepts Used:

Surface Chemistry

The study of the chemical phenomena that occur at the interface of two surfaces which can be solid-liquid, solid-gas, solid-vacuum, liquid-gas, etc. 

Read Also: Surface Chemistry

Applications of surface chemistry are:

Adsorption:

The process of attraction and aggregation of the molecules of a substance on the surface of a solid is known as adsorption. For Example, N2 adsorbs on the surface of activated charcoal

Two types of adsorption are:-

  • Chemisorption: It is also known as Chemical Adsorption.
  • Physisorption: It is also known as Physical Adsorption.

Corrosion:

The process through which the refined metals convert themselves into more stable compounds is known as corrosion.

Crystallisation:

The type of technique used in order to purify the substances to separate Solids from liquids is known as crystallisation.

Heterogeneous Catalysis:

The process wherein a catalyst is used in order to increase the rate of a chemical reaction is known as catalysis. The catalyst does not undergo any transformation and can be recovered in a chemically unchanged state. 

There are two types of catalysis:-

  • When the catalyst involved and the reacting substances are same states of matter or in the same phase, it is known as Homogeneous Catalysis.
  • When the catalyst involved and the reacting substances are in different states of matter or different phases, it is known as Heterogeneous Catalysis.