Advertisements
Advertisements
प्रश्न
Answer the following
Give two examples of catalysts.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Write the formula to calculate the % atom economy.
Name the γ-isomer of BHC.
How will you illustrate the use of a safer solvent and auxiliaries?
Explain any three principles of green chemistry.
Answer the following:
Explain the atom economy with a suitable example.
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.
Mention the total number of principles of green chemistry.
Name the γ-isomer of Benzene hexachloride.
Which principle of green chemistry has its perspective towards carrying out reactions at room temperature and pressure?
Define atom economy.
Write one example of safer solvent and hazardous solvent.
____________ can be categorised as a green solvent.
In the manufacture of phenol from isopropyl benzene, the important by-product obtained is ____________.
The formula for percentage atom economy is:
`("Formula weight of the desired product")/("'X'") xx 100`
Here, 'X' is ____________.
The international plastic recycle mark with 'Number 1' is given to ____________.
Which of the following is recycled to prepare foam packaging and light switchplates?
Define the role of safer chemistry in accident prevention.
How many principles does green chemistry have?
If salicylic acid (138 u) reacts with acetic anhydride (102 u) to from aspirin (180 u) calculate % atom economy.
Which of the following is used as green solvent?
