1 Flashcards
(23 cards)
What is carbon classified as?
A non-metallic element
Carbon is essential for life and is found in various forms and compounds.
What is the symbol of carbon?
C
What is the atomic number of carbon?
6
What is the atomic mass of carbon?
12
What is the electron configuration of carbon?
2,4
What is the valency of carbon?
4
What are the two states in which carbon occurs in nature?
Free state and combined state
What is the main element in cellular DNA and RNA?
Carbon
What type of compounds are obtained directly or indirectly from plants and animals?
Organic compounds
What is an example of an inorganic compound containing carbon?
Carbon dioxide (CO2)
What does the black substance remaining after heating organic materials indicate?
Presence of carbon
What are the four main types of hydrocarbons?
- Alkanes
- Alkenes
- Alkynes
- Aromatic hydrocarbons
True or False: Carbon is only found in organic compounds.
False
What is allotropy?
The existence of an element in more than one form in the same physical state
Name one allotrope of carbon.
- Diamond
- Graphite
- Amorphous carbon
What remains behind on complete combustion of organic materials?
Ash (carbon residue)
Fill in the blank: The element carbon is available abundantly in _______.
Nature
What are some daily life substances that contain carbon?
- Foodstuffs
- Clothes
- Medicines
- Fuels
- Wooden objects
What is the significance of carbon in the environment?
It is a common and important constituent in various natural substances.
What is the primary source of carbon compounds?
Plants and animals
