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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Give names of three natural polymers. write the place of their occurance and names of monomers from which they are formed. |
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Answer» 1. Poly saccharide is a natural polymer. It occurs in starch/carbohydrates. It is formed from monomer glucose. 2. Protein is a natural polymer. It occurs in muscles, hair, enzymes, skin, egg. It is formed from alpha amino acids. 3. Rubber is a natural polymer. It occurs in latex of rubber tree. It is formed from monomer isoprene. |
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| 52. |
Name the following:The Polymer of nucleotide. |
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Answer» Correct answer is: D.N.A./R.N.A. |
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| 53. |
Name the following:Two oxidising compounds. |
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Answer» Potassium permanganate, Potassium dichromate. |
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| 54. |
Explain the following terms with example.Homopolymer. |
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Answer» The polymers formed by repetition of single monomer are called homopolymer. e.g. polyethylene (CH2 – CH2)n. |
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| 55. |
Match the columns:Column IColumn II(1) Cyclohexane(a) CH3COOH(2) Methanol(b) CH3Cl(3) Acetaldehyde(c) CH2Cl2(4) Ethanoic acid(d) CH3OH(e) C6H12(f) CH3CHO |
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Answer» (1) Cyclohexane – C6H12 (2) Methanol – CH3OH (3) Acetaldehyde – CH3CHO (4) Ethanoic acid – CH3COOH. |
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| 56. |
Explain the following terms with example.Reduction. |
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Answer» In a chemical reaction, removal of oxygen from a compound or addition of hydrogen to a compound is called a reduction. |
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| 57. |
Explain the following terms with example.Oxidant. |
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Answer» An oxidant is a reactant that oxidizes or removes electrons from other reactants during a redox reaction. An oxidant may also be called an oxidizer or oxidizing agent. When the oxidant includes oxygen, it may be called an oxygenation reagent or oxygen-atom transfer (OT) agent. Examples of oxidants include: 1. Hydrogen peroxide 2. Ozone 3. Nitric acid 4. Sulfuric acid |
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| 58. |
Give two examples of alkanes. |
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Answer» Methane (CH4) and ethane (C2H6) are alkanes. |
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| 59. |
Match the columns:Column IColumn II(1) Cellulose(a) P.V.C. pipes, bags(2) R.N.A(b) Blankets(3) Polyacrylonitrile(c) Wood(4) Polyvinyl chloride(d) Chromosomes of plants |
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Answer» (1) Cellulose – Wood (2) R.N.A. – Chromosomes of plants (3) Polyacrylonitrile – Blankets (4) Polyvinyl chloride – P.V.C. pipes, bags. |
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| 60. |
Explain the following terms with example.Monomer. |
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Answer» The small unit that repeats regularly to form a polymer is called monomer. Example: Ethylene. |
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| 61. |
Name the following:The Monomer of rubber. |
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Answer» Correct answer is: Isoprene. |
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| 62. |
Name the following:The monomer of polysaccharide. |
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Answer» Correct answer is : Glucose. |
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| 63. |
Give two examples of natural macromolecules. |
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Answer» Examples: Polysaccharide, protein and nucleic acid. |
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| 64. |
Give two examples of alkenes. |
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Answer» Ethene (CH2 = CH2) and propene (CH3 – CH = CH2) are alkenes. |
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| 65. |
Write the name and the structure of monomer of teflon and its uses. |
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Answer» The name and structure of monomer: Tetrafluro ethylene CF2 = CF2 Teflon is used to make nonstick cookware. |
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| 66. |
Write the name and the structure of monomer of polyacrylonitrile. |
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Answer» The name and structure of monomer: Acrylonitrile CH2 = CH – CN |
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| 67. |
Give two examples of alkynes. |
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Answer» Ethyne (HC ≡ CH) and propyne (CH3 – C ≡ CH) are alkynes. |
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| 68. |
Name the following:The higher homologue of hexane. |
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Answer» Answer is Keptane. |
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| 69. |
Write the name and molecular formula of a higher homologue of propane. |
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Answer» Butane (C4H10) is a higher homologue of propane. |
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