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What are xenobiotics?

Important Questions on Biochemistry

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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Which one of the following is not a surfactant?
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Trichloroacetaldehyde (CCl3CHO) reacts with chlorobenzene in the presence of sulphuric acid and produces
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Explain the following term with suitable examples: Cationic detergents.
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Which of the following is non-ionic detergent?
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Streptomycin is effective in the treatment of
HARD
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Give some examples of the achievements of green chemistry.
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Green chemistry means such reactions which
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Following type of non-ionic detergents are present in liquid detergents, emulsifying agents and wetting agents. Label the hydrophilic and hydrophobic parts in the molecule. Identify the functional group(s) present in the molecule.
MEDIUM
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment

The following table summarises the differences between biodegradable and non-biodegradable pollutants. Pick out the wrong differences and select the correct answer.

  Biodegradable pollutants Non-Biodegradable pollutants
(i) These are the pollutants which can be easily degraded by microorganisms These are pollutants which cannot be degraded into harmless materials
(ii) These can be used to produce energy (through biogas) compost, manure, etc. These are difficult to manage as a natural method of degradation is absent
(iii) These usually do not enter biogeochemical cycles These become a part of rapid turnover in biogeochemical cycles
(iv) Examples: DDT, BHC, plastics, polyethylene, glass, etc. Examples: Sewage, garbage, animal waste, etc.
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
How are synthetic detergents better than soaps? 
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Which of the following is a synthetic detergent?
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Which was the first efficient drug for the treatment of syphilis?
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Comment on the statement- Green chemistry is an alternative tool for reducing pollution.
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Which of the following detergent acts as a germicide?
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
If water contains dissolved calcium hydrogen carbonate, out of soaps and synthetic detergents which one will you use for cleaning clothes?  
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Green chemistry deals with production and use of _____.
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
What do you mean by green chemistry? How will it help decrease environmental pollution?
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment

Label the hydrophilic and hydrophobic parts in the following compound.

CH3CH210CH2OSO3-Na+

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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Define Antibiotic.
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Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment

A drug 'X' is used in the treatment of dysentery and is an alternative to antibiotic. 'X is?