General Science - Chemistry MCQs

191. Trimethylxanthine is a chemical name of a stimulant which is found in tea and coffee. What is the popular name?
[A] Thein
[B] Caffeine
[C] Theobromine
[D] Theophylline

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192. The popular drug “Acetylsalicylic Acid” is commonly known by which among the following names?
[A] Paracetamol
[B] Aspirin
[C] Salsalate
[D] Wintergreen

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193. What are the main constituents of LPG?
[A] Methane, Hexane, Ethane
[B] Methane, Butane, Propane
[C] Ethane, Pentane, Hexane
[D] Ethane, Methane, Pentane

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194. Which among the following is known as White Vitriol?
[A] Zinc Sulphate
[B] Zinc Chloride
[C] Zinc Phosphate
[D] Zinc oxide

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195. Which among the following is known as Quick Lime?
[A] CaO
[B] CaCO2
[C] Ca(OH)2
[D] CaCl2

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196. In which among the following forms, Nitrogen is present in Urea?
[A] Nitrite
[B] Nitrate
[C] Ammonium
[D] Amide

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197. “Oil of mirbane” is the most common name of which among the following?
[A] Phenol
[B] Toluene
[C] Phenolphthalein
[D] Nitrobenzene

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198. Which among the following substances is most suitable for making Compact Discs?
[A] PVC
[B] Polyethylene
[C] Polyamides
[D] Polycarbonates

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199. What is the common name of analgesic and antipyretic drug acetylsalicylic acid?
[A] Paracetamol
[B] Aspirin
[C] Wintergreen
[D] Trazodone

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200. Bring out the only correct statement in context with Uranium:
[A] Both U-235 and U-238 are fissile but only U-235 can sustain chain reactions
[B] Only U-235 is fissile and can sustain chain reaction but U-238 is fertile
[C] U-238 can be used in chain reactions only after extracting U-235 from it
[D] Uranium enrichment is a process where concentration of U-238 is increased using some chemical processes

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