MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Buna-N involves acrylonitrile as one of the monomers. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
X on polymerisation gives neoprene. Identify X. |
| A. | 1-Chloro-1,3-butadiene |
| B. | 2-Chloro-1,3-butadiene |
| C. | 1-Methyl-1,3-butadiene |
| D. | 2-Methyl-1,3-butadiene |
| Answer» C. 1-Methyl-1,3-butadiene | |
| 3. |
Vulcanization is carried out with which element? |
| A. | Sulphur |
| B. | Phosphorous |
| C. | Oxygen |
| D. | Chlorine |
| Answer» B. Phosphorous | |
| 4. |
Which of the following is incorrect regarding natural rubber? |
| A. | Shows thermoplastic behaviour |
| B. | Soluble in benzene |
| C. | Resistant to attack by oxidising agents |
| D. | Shows high water absorption capacity |
| Answer» D. Shows high water absorption capacity | |
| 5. |
Which of the following is the monomer of natural rubber? |
| A. | Neoprene |
| B. | Isoprene |
| C. | Chloroprene |
| D. | Butadiene |
| Answer» C. Chloroprene | |
| 6. |
The polymer of type [-AAAABBBAAAABBB-]n, where A and B are two different monomers, is called a ______ copolymer. |
| A. | alternating |
| B. | block |
| C. | graft |
| D. | random |
| Answer» C. graft | |
| 7. |
Which of the following phenols are able to form Novolac? |
| A. | m-Hydroxybenzyl alcohol |
| B. | o-Hydroxybenzyl alcohol and p-hydroxybenzyl alcohol |
| C. | 2,4-(Dihydroxymethyl)phenol |
| D. | 2,4,6-(Trihydroxymethyl)phenol |
| Answer» C. 2,4-(Dihydroxymethyl)phenol | |
| 8. |
Bakelite is a cross-linked polymer. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Which of the following is not required for the production of dacron? |
| A. | 450K temperature |
| B. | Ethylene glycol |
| C. | Terephthalic acid |
| D. | Triethylaluminium-titanium tetrachloride |
| Answer» E. | |
| 10. |
Glyptal is obtained from the condensation polymerisation of ethylene glycol with _______ |
| A. | terephthalic acid |
| B. | phthalic acid |
| C. | isophthalic acid |
| D. | trimesic acid |
| Answer» C. isophthalic acid | |
| 11. |
Cyclohexanone on treatment with hydroxylamine gives P, which on treatment with sulphuric acid gives Q. When Q is heated with water at high temperature, R is obtained. Identify R. |
| A. | Nylon-6 |
| B. | Caprolactam |
| C. | Amino caproic acid |
| D. | Nylon-6,6 |
| Answer» B. Caprolactam | |
| 12. |
What is the polymer obtained from the condensation of NH2-(CH2)6-NH2 and COOH-(CH2)8-COOH? |
| A. | Nylon-6,6 |
| B. | Nylon-6 |
| C. | Nylon-6,10 |
| D. | Terylene |
| Answer» D. Terylene | |