NEET 2009 Biology question

Not in NEET syllabus

Steps taken by the Government of India to control air pollution include:

(1)compulsory PUC (Pollution Under Control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons.Correct
(2)permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles.
(3)use of non-polluting Compressed Natural Gas (CNG) only as fuel by all buses and trucks.
(4)compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel.

Answer: (1)

Solution

Compulsory Pollution Under Control (PUC) certification, which tests the emission of carbon monoxide and hydrocarbons from petrol vehicles, is a step actually taken in India, so option (1) is correct. Option (2) is wrong because the norms fixed lower sulphur limits in diesel (for example 50 ppm, i.e.

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Question ID VK-090241