LDC Examination Expected Questions - 27

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CHEMISTRY 
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261. Which of the following is a group of 3rd metal ?
[ Calcium; Aluminium; Sodium; Iron]
Answer :- Aluminium

262. To which of the following does petroleum beloging?
[ Hydro Carbon ; Nitrate; Oxide; Fat]
Answer :- Hydro Carbon

263. The pure gold 0.999 fineness is of ?
Answer :- 24 carats

264. Most precious metal is ........?
Answer :- Platinum

265. Which of these is an element ?
[ Italium ; Canadium; Bolivium; Francium]
Answer :- Francium

266. The instrument used for transfering and measuring fluids is .......?
Answer :- Pipette

267. The acid present in vegetable oil is ..........?
Answer :- Stearic acid

268. Which is known as 'flowing gold'?
Answer :- Petroleum

269. Father of Modern Chemistry ?
Answer :- Robert Boyle


270. Which amoung the following is not a natural occuring element?
[ Uranium; Thorium; Californium; Neptunium]
Answer :- Thorium

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