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You Are On Question Answer Bank SET 5
251. Ferrous Sulphate crystals are known as _______
Answer: Green Vitriol
252. _______ are the chemicals used to bring down body temperature
Answer: Antipyretics
253. ________ is known as Bathing Salt
Answer: Sodium Carbonate
254. Coral reefs are made of _______
Answer: Calcium Carbonate
255. Rat poison is _______
Answer: Zinc Phosphide
256. ________ is used to make artificial rain
Answer: Silver iodide
257. ______ is known as laughing gas
Answer: Nitrous Oxide
258. Dry Ice is _______
Answer: Solid Carbon dioxide
259. _______ are chemicals used as medicine for mental disorderness
Answer: Tranquilizers
260. _______ is referred as wonder metal
Answer: Titanium
261. Cathode rays are discovered by _______
Answer: Julius Plucker
262. Anode rays are discovered by ________
Answer: Gold Stein
263. The atomic number is first calculated by _______
Answer: Moseley
264. Neutron was discovered by ______
Answer: James Chadwick
265. The lightest metal is ________
Answer: Lithium
266. Electrium is an alloy of____________
Answer: Gold and Silver
267. In a dry cell _______&_________ act as electrodes
Answer: zinc, carbon
268. ___________is the purest form of crystalline rock
Answer: Diamond
269. Rutile is the ore of ___________
Answer: Titanium
270. Galena is the ore of _____________
Answer: Lead
271. The most common halide by weight in earth crust is _______________
Answer: Flouride
272. Heaviest metal occurring in nature is______________
Answer: Uranium
273. _____________is the purest type of iron that contains least amount of carbon
Answer: Wrought Iron
274. When iron rests, its weight _______________
Answer: increases
275. The First Metal Used by man is_________________
Answer: Copper
276. What is meant by the Idiom A white elephant ?
Answer: An expensive thing
277. What is meant by the Idiom Pros and cons ?
Answer: For and against
278. What is meant by the Idiom Dutch courage ?
Answer: Courage shown by a drunken person
279. What is meant by the Idiom A rainy day ?
Answer: A time of financial difficulty
280. What is meant by the Idiom Bread and butter ?
Answer: Food for livelihood
281. What is meant by the Idiom Kith and kin ?
Answer: Close relatives family
282. What is meant by the Idiom Alpha and omega ?
Answer: The begining and the end
283. What is meant by the Idiom An apple of discord ?
Answer: A cause of quarrel
284. What is meant by the Idiom At the eleventh hour ?
Answer: At the last moment
285. What is meant by the Idiom At sixes and sevens ?
Answer: In disorder
286. What is meant by the Idiom A dead letter ?
Answer: A law longer in use
287. What is meant by the Idiom Once in a blue moon ?
Answer: Very rarely
288. What is meant by the Idiom Birds of a feather ?
Answer: People of like character
289. What is meant by the Idiom Achilles heel ?
Answer: A weak spot
290. What is meant by the Idiom One foot in grave ?
Answer: Almost dead
291. What is meant by the Idiom Hobsons choice ?
Answer: No choice
292. What is meant by the Idiom Bright to light ?
Answer: Disclose
293. What is meant by the Idiom The bottom line ?
Answer: The final crieteria
294. What is meant by the Idiom To bell the cat ?
Answer: To face the risk
295. What is meant by the Idiom At sea ?
Answer: Confused or lost
296. What is meant by the Idiom Alive and kicking ?
Answer: Active and healthy
297. What is meant by the Idiom To be in a fix ?
Answer: Be in a difficult
298. What is meant by the Idiom Behind ones back ?
Answer: In the absense of
299. What is meant by the Idiom Vox pupuli ?
Answer: Voice of the people
300. What is meant by the Idiom Inter alia ?
Answer: Among otherthings
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