MCQOPTIONS
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MCQOPTIONS
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 | |