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Environmental Chemistry

Short Answer Type

81.

What is the importance of dissolved oxygen in water? How does oxygen reach water?

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Long Answer Type

82.

What processes are generally responsible for the deoxygenation of water?

149 Views

Short Answer Type

83.

Mention different measures for controlling water pollution.

130 Views

84.
Describe quality parameters and standards for drinking water.

The following parameters must be followed before water is supplied for drinking purposes:
(i) It must be colourless and free from any odour or smell.
(ii) Its pH should be between 6·0 to 9·0.
(iii) It must be free from harmful chemicals.
(iv) It should be free from micro-organisms which lead to many diseases.
(v) Its turbidity should be less than 10 ppm.
(vi) It should be reasonably soft.

98 Views

85.

What is soil pollution? How does it differ from air and water pollution?

90 Views

Long Answer Type

86.

What are the different sources of soil pollution? Discuss various measures for controlling soil pollution.

107 Views

87.

Explain giving reactions, the plausible explanation for the escape of methyl isocyanate gas from the Union Carbide Ltd. Plant in Bhopal on Dec 2, 1984.

121 Views

Short Answer Type

88.

How can domestic waste be used as manure?

159 Views

89.

For your agricultural field or garden, you have developed a compost producing pit. Discuss the process in the light of bad odour, files and recycling of wastes for a good produce.

115 Views