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(A): CO pollution is very high from 9AM ...

(A): CO pollution is very high from 9AM to 10 AM in Urban areas
(R): Almost 80% CO is released from Automobiles

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-ENVIRONMENTAL CHEMISTRY-OBJECTIVE EXERCISE - 1 (Environmental segments - Air Pollution)
  1. UV radiation from sun causes a reaction That produces

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  2. Chlorofluorocarbon releases which of the following chemical harmful to...

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  3. Ozone hole refers to

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  4. Ozone layer of stratosphere requires protection from indiscriminate us...

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  6. Which of the following statements are true regarding photochemical smo...

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  7. (A) Acid rains have been reported in some places which are far away fr...

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  8. (A): Nowadays surface of the earth gets heated up. (R): CO2 and wate...

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  9. (A): Holes in ozone layer are observed at the north and the south pole...

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  10. (A): CO pollution is very high from 9AM to 10 AM in Urban areas (R):...

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  11. Tajmahal is effected by

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  12. (A): The pH of normal rain is 5.6. (R) CO2 present in atmosphere abs...

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  13. Poisonous gas present in the exhaust fumes of an automobile is

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  14. Which onc of the following is mainly responsible for the depletion of ...

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  15. CFCl3 is responsible for the decomposition of ozone to oxygen. Which o...

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  16. An object is located at a height of Skrn from the surface of the carth...

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  17. Identify the correct decreasing order of the following with respect to...

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  18. When organic substances undergo anaerobic degradation the product form...

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  19. The non-viable particulate is among the following is

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  20. The loss or reduction of chlorophyll in the leaves is termed as

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