Home
Class 12
CHEMISTRY
Assertion (A) : Excessive use of chlorin...

Assertion (A) : Excessive use of chlorinated synthetic pesticides causes soil and water pollution.
Reason (R) : Such pesticides are non-biodegradable.

A

If both assertion and reason are true and the reason is the correct explanation of assertion

B

If both assertion and reason are true and the reason is not the correct explanation of assertion

C

If assertion is true but the reason is false

D

If assertion is false but reason is true

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL CHEMISTRY

    VK JAISWAL ENGLISH|Exercise MATCH THE COLUMN|7 Videos

  • d-BLOCK ELEMENTS

    VK JAISWAL ENGLISH|Exercise ASSERTION-REASON TYPE QUESTIONS|32 Videos

  • METALLURGY

    VK JAISWAL ENGLISH|Exercise ASSERTION-REASON TYPE QUESTIONS|29 Videos

Similar Questions

Explore conceptually related problems

The use of ____ detergents does not cause water pollution.

Assertion : Most of the synthetic polmers are non-biodegradable . Reason : During polymerisation , the polymers become toxic and non-biodegradable .

Assertion (A): Sodium chloride used to clear snow on the roads. Reason (R ): Sodium chloride depresses the freezing point of water.

Assertion : the disadvantages of chemical pesticides can be overcome by the use of biopesticides. Reason: Biopesticides are the harmless pesticides of biological orgin which are used to cotrol weeds and pests without causing any significant damage .

Assertion (A) Most of the synthetic polymers are not biodegradable Reason (R ) Polymerisation process induces toxic character in organic molecules

Assertion (A): Decrease in free energy causes spontaneous reaction Reason (R ) : Spontaneous reactions are invariably exothermic.

Assertion : Sewage, industrial effluents and waste water are non-point sources of water pollution. Reason : Surface runoff is point source of water pollution.

Assertion : Heavy metals such as cadmium, mercury, nickel etc. are water pollutants . Reason : Heavy metals are not harmful to humans.

Assertion (A): The increasing pressure on water decreases its freezing point. Reason (R ):The density of water is maximum at 273 K .