Free Industrial Chemistry MCQs with Answers
292 Industrial Chemistry MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Industrial chemistry applies chemical reactions and material properties to the manufacture of adhesives, dyes and polymers. Coverage includes addition and condensation polymerisation, thermoplastics and thermosetting polymers, the structural basis of colour in dyes, and how adhesive composition enables bonding between surfaces.
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Read the Industrial Chemistry notesFree MDCAT chapter notes with key terms292 questions · page 14 of 15
- A. Sodium stearate
- B. Calcium stearate
- C. Sodium acetate
- D. Sodium benzoate
Explanation: An ordinary soap is the sodium or potassium salt of a longchain fatty acid.
Correct answer: Sodium stearate- A. Both are fatty acids having the same number of carbon atoms
- B. Both are saturated fatty acids
- C. One olefinic bond is present in oleic acid
- D. The alkyl group of stearic acid contains 35 hydrogen atoms
Explanation: Stearic acid is a saturated fatty acid (with no C=C double bonds). Oleic acid is a monounsaturated fatty acid, meaning it contains one C=C…
Correct answer: Both are saturated fatty acids- A. It is a drying oil
- B. It is used in paints and varnishes
- C. It is a vegetable oil
- D. It is a triglyceride of saturated fatty acids
Explanation: Linseed oil is classified as a "drying oil" because it is rich in polyunsaturated fatty acids (like linolenic acid).
Correct answer: It is a triglyceride of saturated fatty acids- A. The aliphatic polyamides are generally known as Nylons
- B. The aliphatic polyamides are generally known as polyesters
- C. The aliphatic polyamides are generally known as rayons
- D. None of the above
Explanation: "Nylon" is the generic designation for a family of synthetic polymers composed of polyamides (repeating units linked by amide bonds).
Correct answer: The aliphatic polyamides are generally known as Nylons- A. Plastic
- B. Petroleum
- C. Starch
- D. Natural rubber
Explanation: A polymer is a macromolecule made of repeating monomer units. Petroleum (crude oil) is a complex mixture of many different hydrocarbon…
Correct answer: Petroleum- A. Nylon-6,6
- B. Polyethylene
- C. Dacron (polyester)
- D. Bakelite
Explanation: Polyethylene is formed by the addition polymerization of ethylene monomers (C₂H₄).
Correct answer: Polyethylene- A. Natural rubber is a hydrocarbon
- B. Natural rubber is isoprene
- C. Natural rubber is a polymer of 1,3-Butadiene
- D. Natural rubber can be vulcanized
Explanation: The correct answer is Option A: 'Natural rubber is a hydrocarbon'. Natural rubber is composed of polyisoprene, which is a hydrocarbon.
Correct answer: Natural rubber is a hydrocarbon- A. Organic waste into drinking water
- B. Oil spill in water
- C. Industrial waste mercury into fishing water
- D. Aresenic into the atmosphere
Explanation: Minamata disease is severe mercury poisoning disease that is caused due to release of industrial waste mercury into fishing water.
Correct answer: Industrial waste mercury into fishing water- A. Both are fatty acids having same number of carbon atoms
- B. Both are saturated fatty acids
- C. One olefinic bond is present in oleic acid
- D. The alkyl group of stearic acid contains 35 hydrogen atoms
Explanation: Stearic acid is saturated and oleic acid is unsaturated fatty acid. Their structure are:
Correct answer: Both are saturated fatty acids- A. Wool wax
- B. Carnauba wax
- C. Beeswax
- D. Spermaceti was
Explanation: Carnauba wax is a natural wax obtained from the leaves of the Copernicia prunifera palm plant.
Correct answer: Carnauba wax- A. Antipyratics
- B. Tranquilizers
- C. Analgesics
- D. None of above
Explanation: Tranquilizers are designed to treat anxiety, fear, tension etc by inducing sleep through central nervous system.
Correct answer: Tranquilizers- A. Hydrolysis
- B. Hydration
- C. Catabolism
- D. Condensation
- E. Transcription
Explanation: Explanation for this question will be added soon.
Correct answer: Condensation- A. Phenol
- B. Benzene
- C. Ethanol
- D. Benzoic Acid
Explanation: The explanation for this question will be added soon.
Correct answer: Phenol274. What is Rayon?
- A. Acetyl chloride
- B. Alkene
- C. Alkyne
- D. Acetic acid
Explanation: Acetic acid is a colourless liquid organic acid with a pungent smell and sour taste, commonly found in vinegar.
Correct answer: Acetic acid- A. Nitrogen
- B. Hydrogen
- C. Oxygen
- D. None of these
Explanation: In synthetic fibers, hydrogen bonding plays a crucial role in providing tensile strength.
Correct answer: Hydrogen- A. Acrylic resins
- B. Polyester resins
- C. PVCs
- D. Polyamide resins
Explanation: Polyester resins are synthetic resins formed by the reaction of dibasic organic acids and polyhydric alcohols.
Correct answer: Polyester resins- A. CH2=CH―CN
- B. CH3―CH2―CH2―CN
- C. CH3―CH2―CN
- D. CH3―CN
Explanation: Explanation:This is the formula of acrylonitrile, which is an organic compound used in the production of synthetic fibers and resins.
Correct answer: CH2=CH―CN- A. Monomers
- B. Isomers
- C. Metameres
- D. Tautomer
Explanation: A macromolecule is a very large molecule. That are composed of many covalently bonded atoms.
Correct answer: Monomers- A. Difluoroethane
- B. Chloroethane
- C. Chlorofluororyhane
- D. Tetrafluoroethane
Explanation: The non-stick lining of pans is made of Teflon/PTFE which is a polymer. Its monomer is tetrafluoroethane.
Correct answer: Tetrafluoroethane- A. -NH2-CO-
- B. -CO-O-
- C. -NH-CO-
- D. -NH-O-CO-
Explanation: Amide linkage is a covalent bond between COOH and NH2 of the amino acid. The linkage is CONH and a water molecule is eliminated.
Correct answer: -NH-CO-