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 Process MCQs
Which of the following is used as a coagulant in water treatment?
Chloramine
Chlorine
Ferrous sulphate
Hydrogen peroxide
✅ The correct answer is option C.
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.
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.
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.
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.
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.
In the production of soda ash by Solvay process, the by-product is
CaCl₂
NH₄Cl
NH₃
NaOH
✅ The correct answer is option A.
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.
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.