MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
TEFLON is used to make chemical carry pipes due to its __________ |
| A. | extreme chemical resistance |
| B. | Resistance towards alkalis |
| C. | Resistance towards strong acids |
| D. | Resistance towards salts |
| Answer» B. Resistance towards alkalis | |
| 2. |
TEFLON has _________ |
| A. | High melting point |
| B. | Low melting point |
| C. | Low density |
| D. | Good conduction of electricity |
| Answer» B. Low melting point | |
| 3. |
TEFLON is obtained by the chain polymerisation of tetra fluoro ethylene in presence of __________ as initiator. |
| A. | Hydrogen peroxide |
| B. | Hydrogen nitrate |
| C. | Hydrogen |
| D. | Benzoyl peroxide |
| Answer» E. | |
| 4. |
The bearings used in the propeller shafts are prepared using ________ |
| A. | Phenol-formaldehyde resin |
| B. | TEFLON |
| C. | Vinyl cyanide |
| D. | Vinyl iso cyanide |
| Answer» B. TEFLON | |
| 5. |
Bakelite is not _______ |
| A. | Hard |
| B. | Strong |
| C. | Rigid |
| D. | Weak |
| Answer» E. | |
| 6. |
Glass laminates can be made by using ___________ |
| A. | Poly vinyl chloride |
| B. | Bakelite |
| C. | Polyethylene |
| D. | Phenol |
| Answer» C. Polyethylene | |
| 7. |
Bakelite is __________ |
| A. | Good anion exchanging resin |
| B. | Attacked by acids |
| C. | Attacked by salts |
| D. | Resistant to alkalis |
| Answer» B. Attacked by acids | |
| 8. |
Phenol is made to react with formaldehyde in the presence of acid or alkali produces ________ |
| A. | Phenol |
| B. | Poly vinyl chloride |
| C. | Plasticized poly vinyl chloride |
| D. | Polyethylene |
| Answer» B. Poly vinyl chloride | |
| 9. |
Plasticized poly vinyl chloride can be used for _________ |
| A. | High frequency insulator parts |
| B. | Bottle caps |
| C. | Coated wires |
| D. | Electrical insulation |
| Answer» E. | |
| 10. |
Poly vinyl chloride is a __________ |
| A. | Blue coloured compound |
| B. | Inflammable |
| C. | Weak |
| D. | Brittle |
| Answer» E. | |
| 11. |
Poly vinyl chloride is produced by the free radical chain polymerisation of the vinyl chloride in presence of the benzoyl peroxide. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
The low density polyethylene has a melting point. |
| A. | 840C |
| B. | 850C |
| C. | 860C |
| D. | 870C |
| Answer» E. | |
| 13. |
Which of the following is attacks the polyethylene? |
| A. | Kerosene |
| B. | Strong acids |
| C. | Alkalis |
| D. | Salt solutions |
| Answer» B. Strong acids | |
| 14. |
Polyethylene is a ___________ |
| A. | Bad conductor |
| B. | Transparent |
| C. | Polar material |
| D. | High symmetrical structure |
| Answer» E. | |