Worksheets4. Carbon and compounds
Total questions: 25
Worksheet time: 25mins
How many bonds will a C atom form?
1
2
3
4
This is an example of a
straight carbon chain
branched carbon chain
carbon ring structure
None of these
Cation is formed when
Atom gains electrons
Atom loses electrons
Proton is lost by the atom
Atom shares electrons
Covalent bonds
has low melting and boiling point
are generally poor conductors of electricity
has weak inter-molecular forces
All of the above
Covalent compounds
have high melting and boiling point
are mostly soluble in water
are formed between atoms of metals and non-metals
are formed by the sharing of electrons in the bonding atoms.
Which of the following is an alkyne?
C3H6
C4H6
C5H12
C6H12
How many carbon atoms in propene?
8
7
6
3
What is the percentage of carbon on Earth's atmosphere?
0.429%
21.21%
0.03%
5.5%
Which compounds have the same molecular formula but different structures?
hydrocarbons
isomers
organic compounds
polymers
The electrons on the outside energy level are called _______________ electrons.
Inner
Outer
Valence
Reacting
Give the name of this compound...
C4H8
Propene
Butane
Butene
Propane
Alkanes are saturated hydrocarbons. What does this mean?
There are some C=C double bonds present in the molecule
All C atoms are bonded by single covalent bonds
They are very reactive
The property of self-linkage among identical atoms to form long chain compounds is known
Superposition
Catenation
Isomerisation
Halogenation
The difference in formula and molecular masses of CH3OH and C2H5OH is
CH3 and 16u
CH4 and 18u
CH2 and 14u
CH3 and 16u
Carbon's electronic configuration is
2,2,2
2,4
1,1,4
3,2,1
The amount of carbon in the earth's crust
0.03%
0.01%
0.02%
0.00%
Outer shell electrons are called
outer electrons
valence electrons
negatives
super electrons
Graphite is a good conductor of electricity because
(a) is very hard
(b) Its structure is very compact
(c) It is not soluble in water
(d) It has free electrons to conduct electric current.
