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प्रश्न
Answer the following
Give two examples of catalysts.
उत्तर
i. In the contact process of industrial production of sulfuric acid; sulphur dioxide and oxygen from the air react reversibly over a solid catalyst of platinised asbestos.
ii. Hydrogenation with nickel as a catalyst is used to convert inedible oils into solid fat for the production of margarine.
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संबंधित प्रश्न
Answer the following
Name the ϒ-isomer of BHC.
Answer the following
How will you illustrate the use of a safer solvent and auxiliaries?
Answer the following:
Explain the atom economy with a suitable example.
Answer the following
How will you illustrate the principle, minimization of steps?
Bottom ash of thermal power stations can be used as raw material for cement and brick industry. This example illustrates which of the following principle of green chemistry?
According to less hazardous chemical synthesis point of view, instead of harmful DDT now a days _______ is used as insecticides.
Catalyst used for hydrogenation of oil is ___________
In green technology developed by Drath and Frost, adipic acid is enzymatically synthesized from _______.
Name the γ-isomer of Benzene hexachloride.
Define atom economy.
Write one example of safer solvent and hazardous solvent
Explain prevention of waste or by products which is one of the principles of green chemistry.
In the manufacture of phenol from isopropyl benzene, the important by-product obtained is ____________.
Drath and Frost developed a green technology for the synthesis of ____________.
The formula for percentage atom economy is:
`("Formula weight of the desired product")/("'X'") xx 100`
Here, 'X' is ____________.
Mandelonitrile is obtained by the reaction between hydrogen cyanide and ______.
γ-isomer of BHC is called as ____________.
All the following statements are CORRECT, EXCEPT:
Identify the use of polyethylene terephthalate.
Identify the polymer used in making floor tiles.
Define the role of safer chemistry in accident prevention.
Calculate the atom economy of the following:
(At mass of C = 12, H = 1, 0 = 16)
\[\ce{CH3 - CH2 - OH ->[\Delta] CH2 = CH2 + H2O}\]
How many principles does green chemistry have?
