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Carbon Compounds and Properties Quiz

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Questions and Answers

What percentage of carbon is present in the earth's crust?

0.3%

0.03%

0.02% (correct)

0.2%

In what form is the carbon present in the atmosphere?

Ethylene

Methane

Carbon dioxide (correct)

Carbon monoxide

What are some examples of compounds containing carbon mentioned in the text?

Sodium and potassium

Coal and petroleum (correct)

Oxygen and nitrogen

Gold and silver

What is the significance of carbon mentioned in the text?

It is present in food, clothes, medicines, and books. Signup and view all the answers

What are some examples of items that are likely to be made up of compounds of carbon according to the text?

Food, clothes, medicines, books, and many other daily use items are likely to be made up of compounds of carbon. Signup and view all the answers

Why is carbon of immense significance to humans?

It is present in both elemental form and combined form. Signup and view all the answers

What is the focus of Chapter 4 in the text?

The focus of Chapter 4 is to study interesting compounds and their properties, particularly carbon. Signup and view all the answers

What is the percentage of carbon present in the earth’s crust and in the atmosphere as mentioned in the text?

The earth’s crust has only 0.02% carbon in the form of minerals, while the atmosphere has 0.03% of carbon dioxide. Signup and view all the answers

Why is carbon considered a versatile element according to the text?

Carbon is considered a versatile element as it forms the basis of food, clothes, medicines, books, and many other things, in addition to being the basis of all living structures. Signup and view all the answers

What would be the product if a compound containing carbon is burnt and is there a test to confirm this, as per the text?

The product of burning a carbon-containing compound is carbon dioxide. There are tests available to confirm the presence of carbon in compounds, but the specific test is not mentioned in the text. Signup and view all the answers

Study Notes

Carbon in the Earth's Crust and Atmosphere

Carbon makes up 0.025% of the Earth's crust.
Carbon is present in the atmosphere in the form of carbon dioxide (CO2).

Compounds Containing Carbon

Examples of compounds containing carbon include carbon dioxide (CO2), calcium carbonate (CaCO3), and glucose (C6H12O6).

Significance of Carbon

Carbon is of immense significance to humans because it is the basis of all life on Earth.
Carbon is considered a versatile element due to its ability to form long chains and rings, and to bond with many other elements.

Carbon in Everyday Items

Items likely to be made up of compounds of carbon include fuels, medicines, and fabrics.

Chapter 4 Focus

The focus of Chapter 4 is carbon and its compounds.

Burning Carbon-Containing Compounds

When a compound containing carbon is burnt, the product is carbon dioxide (CO2).
The test to confirm the production of CO2 is the lime water test, which turns milky when CO2 is present.

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Description

Test your knowledge on carbon compounds and their properties in this quiz. Learn about the significance of carbon in both its elemental form and combined form.