Tag Archives | Carbon

What are the harmful effect of Carbon Monoxide?

Carbon monoxide is highly poisonous gas. It is a colourless and odourless gas and hence its presence cannot be detected immediately. When inhaled, carbon monoxide readily combines with the haemoglobin of our blood.

What are the harmful effects of Carbon dioxide?

Carbon dioxide is not normally considered a pollutant because it is a normal constituent of air. However, excess of carbon dioxide is considered a [pollutant because it leads to adverse effects on the environment.

What are the greenhouse effects of carbon dioxide ?

All fossil fuels on burning produce carbon dioxide gas. Carbon dioxide is not a poisonous gas. The presence of carbon dioxide in our atmosphere is essential for plant life. But, increase in the concentration of carbon dioxide in the atmosphere leads to an increase in the temperature in the earth.

What are the effects of carbon monoxide (CO) ?

When the fossil fuels are burnt in a limited amount of air (oxygen), the products of combustion are CO and H2O. Carbon monoxide is the most dangerous air pollutant. Carbon monoxide when inhaled combines with hemoglobin in the blood to form carboxyhaemoglobin. Carboxyhaemoglobin cannot carry oxygen.

Why does carbon always form covalent bonds ?

To gain stability, it should lose its valence electrons, gain four more electrons or share its 4 valence electrons with other atoms. Carbon atom has been no tendency to lose its four valence electrons or gain four more electrons from other atoms.

What is meant by tetravalency of carbon ?

A carbon atom has four electrons in its outermost valence shell. So, it needs four more electrons to complete its octet. A carbon atom completes its octet only by sharing its valence electrons with other atoms.

How does carbon-14 decay ?

In this reaction, the mass number remains constant (at 14),. So, the sum of the number of protons and neutrons remains constant.

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