2.) What is the valency and valence electrons of carbon?
3.) What is an organic compound?
4.) What is caramel?
5.) Write any two amorphous carbons.
6.) What is another name of graphite?
7.) What are the allotropes of carbon?
8.) What is the full form of LPG?
9.) What are the properties of carbon that lead to the formation of a vast number of carbon compounds we see around us?
10.) What are allotropes? Write the types of allotropes of carbon.
11.) What are the conditions for firewood to burn and produce carbon monoxide and carbon dioxide ? Write the balanced chemical equations.
12.) What is water gas? How is it made? Write its balanced chemical equation. Write the physical properties of carbon.
13.) What is catenation? Write in brief with an example.
14.) Write any three chemical properties of carbon with balanced chemical equations.
15.) Enlist the uses of diamond.
16.) While conducting an experiment in a science laboratory, some grease unknowingly stuck in Sujan's shirt. After seeing it, he was worried. At that moment, his science teacher suggested to him to wash his shirt with little petrol instead of using soap and wa
17.) What happens when lead oxide is strongly heated with carbon?
18.) What happens when carbon is heated in water vapour?
19.) Differentiate between diamond and graphite.
20.) Differentiate between organic and inorganic compounds.
21.) Carbon forms covalent bonds. Why?
22.) Diamond is a bad conductor while graphite is a good conductor of electricity. Why?
23.) Graphite is used as a lubricant. Why?
24.) Diamond is the hardest substance known. Why?
25.) There are hundreds of thousands organic compounds. Why?
26.) While we burn charcoal or turn on a gas heater, it is dangerous to stay in a room by closing all the doors and windows. Why?
27.) Melting and boiling points of organic compounds are low. Why?
28.) When we burn firewood, it sometimes emits dense black smoke while it emits less smoke. Why?
29.) What is hydrocarbon? What are the types of hydrocarbon on the basis of bonding?
30.) Differentiate between saturated and unsaturated hydrocarbon.
31.) What do you mean by homologous series?
32.) Saturated hydrocarbons are also known as paraffin, why?