Q. No.The catalyst used in the manufacture of polythene by Ziegler method is:
1. Titanium tetrachloride and triphenyl aluminium
2. Titanium tetrachloride and triethyl aluminium
3. Titanium dioxide
4. Titanium iso-propoxide
1. Titanium tetrachloride and triphenyl aluminium
2. Titanium tetrachloride and triethyl aluminium
3. Titanium dioxide
4. Titanium iso-propoxide
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
Which of the following is wrong?
1. PMMA is called plexiglass
2. PTFE is called teflon
3. SBR is called natural rubber
4. LDPE is called low density polyethylene
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
Which of the following is not a fibre?
1. Terylene
2. Nylons
3. Polyacrylonitrile
4. Polychloroprene
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
The incorrect match among the following options is:
| 1. | Terylene— condensation polymer of terephthalic acid and ethylene glycol. |
| 2. | Teflon— thermally stable cross-linked polymer of phenol and formaldehyde. |
| 3. | Perspex— a homopolymer of methyl methacrylate. |
| 4. | Synthetic rubber — a copolymer of butadiene and styrene. |
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
Which is/are true for elastomers?
1. These are synthetic polymers possessing elasticity
2. These possess very weak intermolecular forces of attractions between polymer chains
3. Vulcanised rubber is an example of elastomer
4. All of the above
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
Rubber is heated with sulphur and the process is known as:
1. Galvanization.
2. Vulcanization.
3. Bessemerization.
4. Sulphonation.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
Which of the following is used to make non stick cookware ?
1. PVC
2. Polysterene
3. Polyethylene
4. PTFE
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
Buna-S is a synthetic copolymer of:
1. Styrene and 1,3-butadiene
2. Styrene and ethylene
3. 1,3-Butadiene and ethylene
4. None of the above
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
Gutta parcha rubber is:
1. A trans-1,4-polyisoprene polymer
2. A very hard material
3. A synthetic polymer
4. All of the above
© 2024 GoodEd Technologies Pvt. Ltd.