5011. Gun powder, which is an explosive comprises of charcoal, sulphur and
Glycerene
Salt petre
Nitro glycerene
Dynamite
✅ The correct answer is option B.
Chemical Engineering
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5012. __________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.
Solvay
Ostwald’s
Haber’s
None of these
✅ The correct answer is option B.
5013. Maleic anhydride is produced by catalytic oxidation of
Toluene
Ethyl alcohol
Naphthalene
Benzene
✅ The correct answer is option D.
5014. Cement setting under water employs a/an __________ process.
Hydration
Decomposition
Oxidation
Reduction
✅ The correct answer is option A.
5015. Which one of the following is not an elastomer?
Polyisoperene
Neoprene
Nitrile-butadiene
None of these
✅ The correct answer is option D.
5016. Chemical name of aspirin (an analgesic drug) is
Acetylsalicylic acid
Nictonic acid
Calcium acetate
Methyl salicylate
✅ The correct answer is option A.
5017. Nylon-6 is manufactured from
caprolactum.
adipic acid and hexamethylene diamine.
maleic anhydride and hexamethylene diamine.
sebasic acid and hexamethylene diamine.
✅ The correct answer is option A.
5018. Celluloid is
cellulose acetate
regenerated cellulose
cellulose nitrate
cellulose acetate butyrate
✅ The correct answer is option C.
5019. Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals.
organic peroxides
sulphuric acid
hydroflouric acid
none of these
✅ The correct answer is option A.
5020. Addition of stabiliser during PVC manufacture is done to
improve its impact strength.
improve its elasticity.
reduce the melt viscosity & glass transition temperature.
prevent its thermal degradation.
✅ The correct answer is option D.