5111. Vulcanisation of rubber
Decreases its tensile strength
Increases its ozone & oxygen reactivity
Increases its oil & solvent resistance
Converts its plasticity into elasticity
✅ The correct answer is option D.
Chemical Engineering
Prepare with the best Chemical Engineering MCQs with answers and detailed explanations for exams and job tests. Our collection covers key topics such as chemical process calculations, thermodynamics, fluid mechanics, heat transfer, mass transfer, reaction engineering, instrumentation, and plant design. These Chemical Engineering multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and job interviews. Practice online with updated Chemical Engineering MCQs to strengthen your concepts and improve technical problem-solving skills.
5112. Which of the following is used as a coagulant in water treatment?
Chloramine
Chlorine
Ferrous sulphate
Hydrogen peroxide
✅ The correct answer is option C.
5113. Dense soda ash used in the manufacture of glass, is chemically represented by
Na₂CO₃
Na₂CO₃.10H₂O
Na₂CO₃.H₂O
Na₂HCO₃
✅ The correct answer is option C.
5114. Dacron is a
Condensation product of hexam-ethylene diamine and adipic acid
Thermosetting material
Condensation product of dimethyl terephthalate and ethylene glycol
None of these
✅ The correct answer is option D.
5115. Nylon-6 is manufactured from
Caprolactum
Hexamethylene diamine and adipic acid
Hexamethylene diamine and maleic anhydride
Hexamethylene diamine and sebacic acid
✅ The correct answer is option A.
5116. Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance.
Flint
Soda
Pyrex
Potash
✅ The correct answer is option C.
5117. Zeolite is a/an
Naturally occuring clay which is capable of exchanging cations
Abrasive material
Catalyst used in shift conversion
None of these
✅ The correct answer is option A.
5118. In the production of soda ash by Solvay process, the by-product is
CaCl₂
NH₄Cl
NH₃
NaOH
✅ The correct answer is option A.
5119. Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of
Carbon
Arsenic
Lead
Sulphur
✅ The correct answer is option B.
5120. Pick out the wrong statement pertaining to nitric acid.
About 90% of nitric acid is manufactured by Ostwald
It is a strong mono basic acid which reacts with almost all the metals except noble metals
Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO₂)
Arc process of nitric acid manufacture is economical as compared to Ostwald
✅ The correct answer is option D.