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This section includes 24 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
1. |
The catalyst used in the manufacture of polyethene by Ziegler method is [KCET 1993, 99] |
A. | Titanium tetrachloride and triphenyl aluminium |
B. | Titanium tetrachloride and trimethyl aluminium |
C. | Titanium dioxide |
D. | Titanium isopropoxide |
Answer» C. Titanium dioxide | |
2. |
Which polymer is formed by chloroethene [RPET 1999] |
A. | Teflon |
B. | Polyethene |
C. | PVC |
D. | Nylon |
Answer» D. Nylon | |
3. |
Polymers of the type Z ? Mn ? Y, i.e. those which contain a foreign molecule in addition to the recurring unit are known as |
A. | Semisynthetic polymers |
B. | Atactic polymers |
C. | Telomers |
D. | Plasticiser |
Answer» D. Plasticiser | |
4. |
Melamine is |
A. | Gas |
B. | Yellow liquid |
C. | White crystalline solid |
D. | Colloidal solution |
Answer» D. Colloidal solution | |
5. |
The Zieglar-Natta catalysts are |
A. | Stereospecific |
B. | Non-metallic complexes |
C. | Gaseous catalysts |
D. | Universal in all polymerisation reactions |
Answer» B. Non-metallic complexes | |
6. |
Which of the following statement is correct regarding the drawbacks of raw rubber [AIIMS 2001] |
A. | It is plastic in nature |
B. | It has little durability |
C. | It has large water-absorption capacity |
D. | All of these |
Answer» E. | |
7. |
Which of the following is not polyamide [AFMC 2000; CBSE PMT 2001; KCET 2001] |
A. | Nylon-66 |
B. | Protein |
C. | Glyptal |
D. | Nylon-6 |
Answer» D. Nylon-6 | |
8. |
Glyptal is a |
A. | Viscose rayon |
B. | Nylon |
C. | Polystyrene |
D. | Alkyd resin |
Answer» E. | |
9. |
As the molecular weight increases the tensile strength of polymers |
A. | Increases |
B. | Decreases |
C. | Remains unchanged |
D. | Uncertain |
Answer» B. Decreases | |
10. |
?Rayon?is |
A. | Natural silk |
B. | Artificial silk |
C. | Natural plastic or rubber |
D. | Synthetic plastic |
Answer» C. Natural plastic or rubber | |
11. |
Which of the following has amide links |
A. | Protein |
B. | Nylon |
C. | Peptide |
D. | All of these |
Answer» E. | |
12. |
Which of the following is teflon [MP PMT 2000, 03] |
A. | \[{{\left[ \begin{matrix} H\,\,\,\,H\\ |\,\,\,\,\,\,\,\,|\\ -C-C-\\ |\,\,\,\,\,\,\,\,|\\ H\,\,\,\,H\\ \end{matrix} \right]}_{n}}\] |
B. | \[{{\left[ \begin{matrix} \,\,H\,\,C{{H}_{3}}\\ |\,\,\,\,\,\,\,\,|\\ -C-C-\\ |\,\,\,\,\,\,\,\,|\\ H\,\,\,\,H\\ \end{matrix} \right]}_{n}}\] |
C. | \[{{\left[ \begin{matrix} F\,\,\,\,F\\ |\,\,\,\,\,\,|\\ -C-C-\\ |\,\,\,\,\,\,\,|\\ F\,\,\,\,\,F\\ \end{matrix} \right]}_{n}}\] |
D. | \[{{\left[ \begin{matrix} H\,\,\,F\\ |\,\,\,\,\,\,\,|\\ -C-C-\\ |\,\,\,\,\,\,\,|\\ F\,\,\,Cl\\ \end{matrix} \right]}_{n}}\] |
Answer» D. \[{{\left[ \begin{matrix} H\,\,\,F\\ |\,\,\,\,\,\,\,|\\ -C-C-\\ |\,\,\,\,\,\,\,|\\ F\,\,\,Cl\\ \end{matrix} \right]}_{n}}\] | |
13. |
Polythene is a resin obtained by polymerisation of or The monomer unit in polythene is [CPMT 1983; JIPMER 1997; MP PMT 2002] |
A. | Butadiene |
B. | Ethylene |
C. | Isoprene |
D. | Propylene |
Answer» C. Isoprene | |
14. |
Which of the following is currently used as a tyrecord [Kerala (Med.) 2003] |
A. | Terelene |
B. | Polyethylene |
C. | Polypropylene |
D. | Nylon ? 6 |
Answer» E. | |
15. |
Which polymer is used for making magnetic recording tapes [AMU 1999] |
A. | Dacron |
B. | Acrilan |
C. | Glyptal |
D. | Bakelite |
Answer» E. | |
16. |
Heating of rubber with sulphur is known as [CBSE PMT 1989] |
A. | Galvanisation |
B. | Vulcanisation |
C. | Bessemerisation |
D. | Sulphonation |
Answer» C. Bessemerisation | |
17. |
Nylon polymers are |
A. | Acidic |
B. | Basic |
C. | Amphoteric |
D. | Neutral |
Answer» D. Neutral | |
18. |
Triethyl aluminium titanium chloride used in plastic industry is a |
A. | Vulcaniser |
B. | Plasticiser |
C. | Ziegler-Natta catalyst |
D. | Telomer |
Answer» D. Telomer | |
19. |
Which of the following is not a natural polymer [AFMC 2003] |
A. | Cellulose |
B. | Protein |
C. | PVC |
D. | Nucleic acid |
Answer» D. Nucleic acid | |
20. |
?Cis-1, 4-polyisoprene? is |
A. | Thermoplastic |
B. | Thermosetting plastic |
C. | Elastic (rubber) |
D. | Resin |
Answer» D. Resin | |
21. |
Which of the following is synthetic rubber[NCERT 1978] |
A. | Buna-S |
B. | Neoprene |
C. | Both A and B |
D. | None of these |
Answer» D. None of these | |
22. |
Which of the following is not an example of additional polymer [KCET 2001; CBSE 2001] |
A. | Terylene |
B. | Polypropylene |
C. | Polyethylene |
D. | Polystyrene |
Answer» B. Polypropylene | |
23. |
Which of the following is an example of condensation polymer |
A. | Nylon |
B. | Bakelite |
C. | Urea-formaldehyde resin |
D. | All of these |
Answer» E. | |
24. |
Which of the following is an addition polymer |
A. | Glucose |
B. | Polyethylene |
C. | Ethylene |
D. | Terylene |
Answer» C. Ethylene | |