WorksheetsQtr 2 Module 4-5 Review
Total questions: 10
Worksheet time: 2mins
Choose only the letter of the correct answer.
It is an element having an atomic number of 6 and represented by the symbol C and is a non-metal.
bismuth
carbon
potassium
titanium
Which of the following allotropes is one of the hardest substances known?
amorphous carbon
diamond
graphite
white carbon
Based on electrical conductivity, which of the following allotropes of carbon is considered good
conductor of electricity?
diamond
graphite
ionsdaleite
carbon nanotube
If carbon has 4 valence electrons on their outermost energy level,how many bonds can form to other
atoms?
1
2
3
4
Which of the following is the correct general formula to derive the straight chain alkanes?
CnH2n+2
CnHn+2
CHn+2
CH+2
Amorphous carbon has many uses. Which of the following is not belong to the group?
ink
paint
ring
rubber products
The following are the three allotropes of Carbon except..
a. amorphous carbon b.diamond c.granite d.graphite
amorphous carbon
diamond
granite
graphite
Is carbon can make up the backbone of many important molecule in our body?
yes
no
partly yes
partly no
Which characteristic of Carbon’s atomic structure explain most of its unique bonding properties?
ability to form long chains.
non-metal property
has two unpaired electrons
tendency to form short weak covalent bond.
This radioactive isotope of carbon is used to find the age of formerly livng things through a process
known as radiocarbon dating.
carbon-4
carbon-12
carbon-14
carbon-6
