Green chemistry means such reaction which
Green chemistry means such reactions which
Options
(a) Are related to the depletion of ozone layer (b) Study the reactions in plants (c) Produce colour during reactions (d) Reduce the use and production […]
Chemistry
At petrol pump, which rubber is used
At petrol pump, which rubber is used
Options
(a) Neoprene (b) Highly vulcanised rubber (c) Orlon (d) None of these
Correct Answer:
Neoprene
Explanation:
No explanation available. Be the first to write the […]
PVC is polymer of
PVC is polymer of
Options
(a) CH₂ = CH–CH₂Cl (b) CH₃–CH=CH–Cl (c) CH₂=CH₂ (d) CH₂=CH–Cl
Correct Answer:
CH₂=CH–Cl
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Polyethylene is a resin obtained by polymerization of
Polyethylene is a resin obtained by polymerization of
Options
(a) styrene (b) isoprene (c) ethylene (d) butadiene
Correct Answer:
ethylene
Explanation:
No explanation available. Be the first to write the explanation for this […]
Which of the following statements is false
Which of the following statements is false
Options
(a) Polythene is a polymer (b) Chlorophyll is a macromolecule (c) Chlorophyll is a polymer (d) Polythene is a macromolecule
Correct Answer: Explanation:
All the […]
which of the following is an example of thermosetting polymer
which of the following is an example of thermosetting polymer
Options
(a) Polythylene (b) Nylon-66 (c) Polystyrene (d) Bakelite
Correct Answer:
Bakelite
Explanation:
Thermosetting polymers are cross linked and permanently rigid polymers which […]
Which of the following is not polyamide
Which of the following is not polyamide
Options
(a) Glyptal (b) Nylon-66 (c) Nylon-6 (d) protein
Correct Answer:
Glyptal
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Which of the following polymer is an example of fibre
Which of the following polymer is an example of fibre
Options
(a) Silk (b) Dacron (c) Nylon-66 (d) All of these
Correct Answer:
All of these
Explanation:
Fibres are the polymers which have strong […]
Which of the following statements is correct regarding the drawbacks of raw rub
Which of the following statements is correct regarding the drawbacks of raw rubber
Options
(a) It is plastic in nature (b) It has little durability (c) It has large water-absorption capacity (d) all […]
Which of the following polymers is hard
Which of the following polymers is hard
Options
(a) Linear (b) Branched chain (c) Thermoplastic (d) Cross-linked
Correct Answer:
Cross-linked
Explanation:
No explanation available. Be the first to write the explanation for this […]