Which of the following statements are correct?A. Ocean is sink fo

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

31.

The pair of gases responsible for acid rain are

  • H2, O3

  • CH4, O3

  • NO2, SO2

  • CO, CH4


32.

Cataract and skin cancer are caused by

  • depletion of nitric oxide

  • depletion of ozone layer

  • increase in methane

  • depletion of nitrous oxide


33.

On the top of mountain, water boils at

  • high temperature

  • same temperature

  • high pressure

  • low temperature


34.

What are X and Y in the following reaction?

CF2Cl2 UV X + Y

  • CF2Cl, Cl

  • C2F4, Cl2

  • CFCl2, F

  • CCl2, F2


Advertisement
Advertisement

35.

Which of the following statements are correct?

A. Ocean is sink for CO2.

B. Greenhouse effect causes lowering of temperature of earth's surface.

C. To control CO emission by automobiles, usually catalytic convertor are fitted into exhaust pipes.

D. H2SO4, herbicides and insecticides form mist.

  • C and D

  • A and B

  • B and D 

  • A and D


D.

A and D

Among the given statements, statement A and D are the correct one. Absorption of CO2 by ocean via photochemical and biological process H2SO4, herbicides and insecticides form mist.


Advertisement
36.

Sea divers use a mixture of

  • O2, N2

  • O2, H2

  • O2, He

  • N2, H2


37.

Which of the following causes blue baby syndrome?

  • High concentration of lead in drinking water.

  • High concentration of sulphates in drinking water.

  • High concentration of nitrates in drinking water.

  • High concentration of copper in drinking water.


38.

N2O4  2NO2 - Q

The unit of Kp for the given reaction is

  • atmosphere

  • atmosphere2

  • atmosphere-1

  • None of these


Advertisement
39.

A neutral fertiliser among these compounds is

  • ammonium nitrate

  • urea

  • CAN

  • ammonium sulphate


40.

Drying soil invariably contains

  • butyric acid

  • stearic acid

  • lauric acid

  • linoleic acid


Advertisement