Font size
WorksheetsQA5 G8
Total questions: 15
Worksheet time: 9mins
How many bonds will a C atom form?
1
2
3
4
Carbon atoms can form many different compounds.
TRUE
FALSE
Which has a more clearly defined shape?
amorphous solid
crystalline solid
(a) is a chemical process in which incomplete combustion of certain solids containing carbon takes place when they are subjected to high heat.
What is the chemical formula of disilane?
Si3H6
Si2H6
Si4H6
Si2H8
How many isotopes does a carbon atom have?
12
13
14
15
Which of the following is not a crystalline allotrope of carbon?
diamond
graphite
coal
none of these
In the structure of diamond, each of the carbon atoms bonds with four other carbon atoms at an angle of ____________.
109.5º
118.5º
109º
110.5º
Impurities in the form of nitrogen impart _______ colour to the diamond.
pink
green
orange
yellow
Which of the following carbon allotropes can be produced by destructive distillation of coal?
Coke
Gas carbon
both of these
Neither of these
Which of the following is not a use of fullerene?
Some fullerenes are used as insulators.
Some fullerenes are used in making electronic devices.
Fullerenes are used in making printer ink.
Fullerenes are used as lubricants.
Which of the following is not a type of coal?
Peat
Lignite
Gas carbon
Anthracite
