Carbon Dioxide and Carbon Monoxide

Q.

Name the various air pollutants discharged by motor vehicle exhausts.

Q.

State three ways by which carbon dioxide gas is added into the atmosphere.

Q. Match the following ​
​

Column - A	Column B
1. Oxides of sulphur and nitrogen​	A. Fire extinguisher​
2. CNG	B. incomplete combustion of coal​
3. Oxygen	C. very low ignition temperature​
4. Iinflammable substances​	D. acid rain​
5. carbon dioxide​	E. necessary for combustion​
6. Carbon monoxide​	F. fuel of automobiles​

1. 1 - D, 2 - F, 3 - E, 4 - C, 5 - A, 6 - B
2. 1 - D, 2 - F, 3 - E, 4 - C, 5 - B, 6 - A

Q.

The most poisonous product formed by incomplete combustion of fossil fuels is

1. Carbon dioxide

2. Nitrogen dioxide

3. Carbon monoxide

4. Sulphur dioxide

Q.

Give two uses of carbon monoxide.

Q.

Which of the following air pollutant reduces the oxygen-carrying capacity of blood to a large extent?

(a) carbon dioxide

(b) nitrogen monoxide

(c) carbon monoxide

(d) sulphur dioxide

Q.

Name the very poisonous gas produced by the incomplete combustion of fuels.

Q.

How is carbon monoxide gas formed?

Q.

Explain the properties and uses of carbon monoxide.

Q.

The gas used as a disinfectant for sterilizing drinking water is -

1. oxygen.

2. chlorine.

3. fluorine.

4. nitrogen.

Q.

The incomplete combustion of firewood in homes produce a very poisonous gas X. When inhaled, gas X combines with the substance Y present in blood and reduces the capacity of blood to carry gas Z causing respiratory problems and suffocation. What are X, Y and Z?

Q.

How is carbon monoxide gas formed?

Q. Incomplete combustion of fuel releases gas.

1. carbon dioxide
2. carbon monoxide
3. sulphur dioxide

Q. The sources of air pollutants are:

1. factories
2. All of the above
3. power plants
4. automobile exhaust

Q. Incomplete combustion of fuel releases gas.

1. carbon dioxide
2. carbon monoxide
3. sulphur dioxide

Q.

_________ is used for respiration in living organisms which reacts with food and release energy.

1. Oxygen

2. Carbon monoxide

3. Ozone

4. Carbon dioxide

Q. Why is carbon monoxide considered to be such a dangerous pollutant?

Q. The graph given here shows the rise in global temperature from $1850$ to $2019$.

1. An increase in temperature will cause a reduction in the emission of greenhouse gases
2. An increase in temperature will cause glaciers to melt and sea levels to rise dramatically
3. An increase in temperature will lead to repair and thickening of the ozone layer
4. An increase in temperature will lead to better crop production and food security

Q.

The function of automobile catalytic converter is to control emissions of:

1. carbon dioxide and hydrogen
2. carbon monoxide and hydrogen
3. carbon monoxide and carbon dioxide
4. carbon monoxide and nitrogen dioxide

Q.

The diagram alongside shows two test tubes A and B. Test tube A contains a green water plant. Test tube B contains both, a green water plant and a snail. Both test tubes are kept in sunlight.

Answer the questions that follow

1. Name the physiological process that releases the bubbles of oxygen.
2. Explain the physiological process as mentioned above in (1).
3. What is the purpose of keeping a snail in test tube B?
4. Why does test tube B has more bubbles of oxygen?
5. Give an example of a water plant, that can be used in the above experiment.
6. Write the overall chemical equation for the above process.