| Question (1):
Which of the following statements is not applicable to cabon compounds? |
| 1. |
They have low melting and boiling points. |
| 2. |
They are ionic in nature.
|
| 3. |
They form homologous series. |
| 4. |
They are generally soluble in organic solvents. |
|
| Ans: 2 |
|
| Question (2):
Which of the following properties is not true regarding organic compounds. |
| 1. |
They are generally covalent compounds. |
| 2. |
Show isomerism.
|
| 3. |
Compounds have high melting and boiling points. |
| 4. |
Generally insoluble in water. |
|
| Ans: 3 |
|
| Question (3):
The property of catenation is more marked in case of _________. |
| 1. |
silicon |
| 2. |
hydrogen
|
| 3. |
oxygen |
| 4. |
carbon |
|
| Ans: 4 |
|
| Question (4):
The open chain aliphatic hydrocarbon with molecular formula C9H16 is _________. |
| 1. |
an alkane |
| 2. |
an alkene
|
| 3. |
an alkyne |
| 4. |
acyclic |
|
| Ans: 3 |
|
| Question (5):
The double bond between the two carbon atoms in the C2H4 molecule indicates |
| 1. |
Two pairs of mobile electrons |
| 2. |
Two pairs of shared electrons
|
| 3. |
Two pairs of unpaired electrons |
| 4. |
Two pairs of lone electrons |
|
| Ans: 2 |
|
| Question (6):
Alkenes and alkynes are _________. |
| 1. |
saturated aliphatic hydrocarbons |
| 2. |
unsaturated aliphatic hydrocarbons
|
| 3. |
unsaturated aromatic hydrocarbons |
| 4. |
cyclic hydrocarbons |
|
| Ans: 2 |
|
| Question (7):
Which of the following compounds have a ring-carbon chain structure? |
| 1. |
Ethane |
| 2. |
Ethene
|
| 3. |
Ethyne |
| 4. |
Benzene |
|
| Ans: 4 |
|
| Question (8):
The structural formula of 2-butene is _________. |
| 1. |
CH3 - CH = C = CH2 |
| 2. |
|
| 3. |
CH3 = CH - CH2 - CH3 |
| 4. |
CH3 - CH = CH - CH3 |
|
| Ans: 4 |
|
Question (9):
IUPAC name of
 is _________. |
| 1. |
propanol |
| 2. |
butanol
|
| 3. |
2-butanol |
| 4. |
isobutanol |
|
| Ans: 3 |
|
| Question (10):
Maximum number of bonds between two atoms of a covalent bond can be |
| 1. |
Four |
| 2. |
Two
|
| 3. |
Three |
| 4. |
One |
|
| Ans: 3 |
|
| Question (11):
The correct formula of ethanol is ________. |
| 1. |
C2H6OH |
| 2. |
C2H5OH
|
| 3. |
CH3OH |
| 4. |
CH3CH2CH2OH |
|
| Ans: 2 |
|
| Question (12):
The functional group of ketones is _______________. |
| 1. |
COOH |
| 2. |
CH=O
|
| 3. |
>C=O |
| 4. |
O |
|
| Ans: 3 |
|
| Question (13):
The IUPAC name of simplest alcohol is _____. |
| 1. |
methanol |
| 2. |
ethanol
|
| 3. |
ethyl alcohol |
| 4. |
methyl alcohol |
|
| Ans: 1 |
|
| Question (14):
In ethane (C2H6) each carbon atom is bonded to |
| 1. |
Six atoms |
| 2. |
Three atoms
|
| 3. |
Two atoms |
| 4. |
Four atoms |
|
| Ans: 2 |
|
| Question (15):
Which of the following does not contain carbonyl group? |
| 1. |
Ethanal |
| 2. |
Ethanol
|
| 3. |
Methanal |
| 4. |
Propanone |
|
| Ans: 2 |
|
| Question (16):
The term 'Isomerism' applies to organic compounds with same |
| 1. |
molecular formula but different structural formulae. |
| 2. |
molecular formula but different empirical formulae.
|
| 3. |
empirical formula but different molecular formulae. |
| 4. |
structural formulae but different molecular formula. |
|
| Ans: 2 |
|
| Question (17):
A hydrocarbon compound burns with a non-luminous flame. Which hydrocarbon type does it indicate? |
| 1. |
Alicyclic hydrocarbon |
| 2. |
Aromatic hydrocarbon
|
| 3. |
Unsaturated hydrocarbon |
| 4. |
Acyclic hydrocarbon. |
|
| Ans: 2 |
|
| Question (18):
The chlorination of methane, is an example of _________. |
| 1. |
addition reaction |
| 2. |
reduction reaction
|
| 3. |
elimination reaction |
| 4. |
substitution chain reaction |
|
| Ans: 4 |
|
| Question (19):
Organic compounds are generally soluble in |
| 1. |
Polar solvents |
| 2. |
Protic solvents
|
| 3. |
Immiscible solvents |
| 4. |
Non-polar solvents |
|
| Ans: 4 |
|
| Question (20):
On heating ethyl alcohol with alumina at 350oC we get _________. |
| 1. |
ethene |
| 2. |
diethyl ether
|
| 3. |
acetaldehyde |
| 4. |
ethane |
|
| Ans: 1 |
|
| Question (21):
The polar end of the sodium stearate soap molecule C17H35COONa contains______. |
| 1. |
CH3(CH2)16- chain |
| 2. |
Na
|
| 3. |
C17 |
| 4. |
-COO-Na+ group |
|
| Ans: 4 |
|
| Question (22):
The non-polar hydrocarbon group of a soap molecule _________. |
| 1. |
repels water but attracts oil and dirt particles |
| 2. |
does not attract oil or dirt
|
| 3. |
faces outward towards the water |
| 4. |
has a -COO-Na+ group |
|
| Ans: 1 |
|
| Question (23):
Micelles are_________. |
| 1. |
soap molecules in clean water |
| 2. |
drops of oil or dirt that surrounds the molecule
|
| 3. |
a tadpole shaped fatty acid |
| 4. |
cluster of soap molecules surrounding the dirt particle |
|
| Ans: 4 |
|
| Question (24):
1-propanol and 2-propanol are |
| 1. |
chain isomers |
| 2. |
position isomers
|
| 3. |
functional isomers |
| 4. |
homologues |
|
| Ans: 2 |
|
| Question (25):
Diamond is not conducting electricity because |
| 1. |
Its structure is very compact. |
| 2. |
There are only carbon atoms present.
|
| 3. |
There are no free electrons. |
| 4. |
It is crystalline in nature. |
|
| Ans: 3 |
|
