TNPSC Chemistry - Hydrocarbon and Its Derivatives
Exam Duration: 45 Mins Total Questions : 30
The first organic compound synthesised in the laboratory is
- (a)
urea
- (b)
methane
- (c)
ethylene
- (d)
acetic acid
The excess use of ethyl alcohol damages the human organ which is
- (a)
kidney
- (b)
liver
- (c)
heart
- (d)
intensive
Consider the following statements
1. The medicine urotropin utilized in the urinal disease is prepared from formaldehyde.
2. The medicine chlorotone utilize to keep the mental balance of the sailor or mountainers is basically extracted from acetone.
Which of the statement(s) given above is/are correct?
- (a)
Only 1
- (b)
Only 2
- (c)
Both 1 and 2
- (d)
None of the above
The vaseline is extracted through the
- (a)
plant gum
- (b)
coaltar
- (c)
pern wax
- (d)
petroleum
Consider the following statements
1. Waxes of bees of honey contains myricyl palmitate.
2. Spermy waxes obtained from the sprems of whale and in it cetyl palmitate is found.
3. Paraffin waxes obtained from petroleum.
Which of the statements given above are correct?
- (a)
1 and 2
- (b)
1 and 3
- (c)
2 and 3
- (d)
1, 2 and 3
Consider the following statements
1. The alcohol which is 100% pure is called absolute alcohol.
2. Ethyl alcohol which cannot be used for the beverage purpose is called denatured alcohol.
3. The mixture of purified spirit, benzene and petrol is called power alcohol.
Which of the statements given above are correct?
- (a)
1 and 2
- (b)
1 and 3
- (c)
2 and 3
- (d)
1, 2 and 3
Match Column I with Column II and select the correct answer using the codes given below the columns.
Column I (Organic compound) |
Column II (Functional group) |
A. Alcohol | 1. --CHO |
B. Aldehyde | 2. --OH |
C. Carboxylic acid | 3. >C==O |
D. Ketone | 4. --COOH |
- (a)
A B C D 2 1 4 3 - (b)
A B C D 1 4 3 2 - (c)
A B C D 4 3 2 1 - (d)
A B C D 3 2 1 4
Study the following statements
1.Diazonium salts play principal role in dye industry
2.Perspex glass is commonly used for constructing residential and commercial qauariums.
3.Gamaxence is a ring compound used as pesticide.It is also called benzene hexa chloride (BHC).
Which of the statements given above are correct?
- (a)
1 and 2
- (b)
1 and 3
- (c)
2 and 3
- (d)
1,2 and 3
Assertion (A) The main constituent of the liquified petroleum gas in methane.
Reason (R) Methane can be used directly for burning in homes and factories where it can be supplied through pipelines.
- (a)
Both A and R are true and R is the correct explanation of A
- (b)
Both A and R are true, but R is not the correct explanation of A
- (c)
A is true, but R is false
- (d)
A is false, but R is true
Chiral molecules are those which are
- (a)
superimposable on their mirror image
- (b)
not superimposable on their mirror image
- (c)
unstable molecule
- (d)
capable of showing geometrical isomerism
Compounds having same number and kind of atoms but different arrangement of atoms in their molecules are called
- (a)
allotrops
- (b)
isotopes
- (c)
isomers
- (d)
polymers
Which of the following has highest knocking property?
- (a)
Aromatic hydrocarbon
- (b)
Olefins
- (c)
Branched chain paraffins
- (d)
Straight chain paraffins
Synthetic ethanol is produced by reacting ethene (in the presence of phosphoric acid) with
- (a)
hydrogen
- (b)
potassium dichromate
- (c)
oxygen
- (d)
water (steam)
In which among the following molecules is the distance between two adjacent carbon atoms largest?
- (a)
Benzene
- (b)
Ethane
- (c)
Ethene
- (d)
Ethyne
Assertion (A) Phenyl is used as a household germicide.
Reason (R) Phenyl is phenol derivative and phenol is an effective germicide.
- (a)
Both A and R are true and R is the correct explanation of A
- (b)
Both A and R are true, but R is not the correct explanation of A
- (c)
A is true, but R is false
- (d)
A is false, but R is true
Consider the following statements
1. Liquified Natural Gas (LNG) in liquified under extremely cold temperatures and high pressure to facilities storage of transportation in specially designed vessels.
2. First LNG terminal in India was built in Hassan.
3. Natural Gas Liquids (NGL) are separated from LPG and these include ethane, propane, butane and natural gasoline.
Which of the statement(s) given above is/are correct?
- (a)
Only 1
- (b)
1 and 3
- (c)
2 and 3
- (d)
1, 2 and 3
Assertion (A) Formic acid is stronger than acetic acid.
Reason (R) Formic acid is an organic acid.
- (a)
Both A and R are true and R is the correct explanation of a
- (b)
Both A and R are true, but R is not the correct explanation of A
- (c)
A is true, but R is false
- (d)
A is false, but R is true
Match Column I with Column II and select the correct answer using the codes given below the columns.
Column I (Organic acid) |
Column II (Natural source) |
A. Formic acid | 1. In milk |
B. Lactic acid | 2. In red ants |
C. Tartaric acid | 3. In tamarind |
D. Glumatic acid | 4. In wheat |
- (a)
A B C D 2 1 3 4 - (b)
A B C D 1 3 4 2 - (c)
A B C D 3 4 2 1 - (d)
A B C D 4 2 1 3
Match Column I with Column II and select the correct answer using the codes given below the columns.
Column I (Types of coal) |
Column II (Percentage of carbon) |
A. Anthracite coal | 1.90% carbon |
B. Bituminous coal | 2. 70% carbon |
C. Lignite coal | 3. 40% carbon |
D. Peat coal | 4. 10 to 15% carbon |
- (a)
A B C D 1 2 3 4 - (b)
A B C D 2 3 4 1 - (c)
A B C D 3 4 1 2 - (d)
A B C D 4 1 2 1
The substance employed for the food processing is
- (a)
sodium carbonate
- (b)
acetylene
- (c)
sodium nitrate
- (d)
benzoic acid
Study the following statements
1. Liquefied Natural Gas (LNG) is first natural gas cooled to an extremely low temperature and at very high pressure.
2. First LNG plant in Gujarat was established by petronet.
3. Natural gas liquids are separated from natural gas and not from LPG.
Which of the statements given above are correct?
- (a)
1 and 2
- (b)
2 and 3
- (c)
1 and 3
- (d)
1, 2 and 3
Study the following statements
1. Cooking gas contains more than 90% of methane gas.
2. Cooking gas supplied in cylinders by gas agencies is liquid.
Which of the statements given above are correct?
- (a)
Only 1
- (b)
Only 2
- (c)
1 and 2
- (d)
None of these
The gas emerged through the cigarette lighter is
- (a)
Butane
- (b)
methane
- (c)
propane
- (d)
redon
The gas produced through the pouring water on the calcium carbide is
- (a)
methane
- (b)
ethane
- (c)
ethylene
- (d)
acetylene
During the first world war, which of the following gas was utilised as the chemical weapon?
- (a)
Carbon monoxide
- (b)
Hydrogen cyanide
- (c)
Mustard gas
- (d)
Burning vapour
In the complete combustion of butane, the end products are
- (a)
water and carbon
- (b)
carbon dioxide and water
- (c)
carbon dioxide and hydrogen
- (d)
butanoic acid and water
The methanol is also known by the name of
- (a)
rubing alcohol
- (b)
grain alcohol
- (c)
wood alcohol
- (d)
deformed alcohol
The wine is prepared by the process of
- (a)
fermentation
- (b)
catalysation
- (c)
conjugation
- (d)
displacement
The antiseptic action of dettol is due to pressure of
- (a)
chlorobenzol
- (b)
chloroxylenol
- (c)
chloroquine
- (d)
chloroamphenicol
Different chromatographic techniques are used
1. to separate all sorts of mixture
2. only volatile components
3. only solid components
4. only isomers
Which of the above is/are correct?
- (a)
Only 1
- (b)
1 and 4
- (c)
2 and 3
- (d)
3 and 4