Chemistry-Objective Related Question Answers
351. Sodium is kept in?
Kerosene
352. Sodium was discovered by?
Humphry Davy
353. The element which regulates blood pressure in human beings?
Sodium
354. Cell used to manufacture sodium hydroxide (NaOH)?
Castner Kellner Cell
355. Compound used as air purifier cell in submarines?
Sodium peroxide
356. Compound which is used as a fixer in photographic film?
Sodium Thio sulphate or Thio
357. The compound used in blood bank?
Sodium citrate
358. The sodium compound used as coolant in atomic reactors?
Liquid sodium
359. Sodium and Potassium are known as?
Soft metals
360. They are highly reactive with?
Water
361. Sodium and Potassium are kept in?
Kerosene
362. Element known as 'chemical sun' is?
Magnesium
363. The metal present in chloroplast of plants?
Magnesium
364. The Magnesium compound used for dental filling?
Sorel cement
365. Magnesium Hydroxide; acts as an antacid is popularly known as?
Milk of Magnesia
366. The most abundant metal in the earth's crust?
Aluminium
367. Which is the main ore of Aluminium is?
Bauxite
368. Aluminium was isolated for the first time by?
Hans Oersted
369. Manufacturing process of Aluminium is?
Hall Heroult Process
370. Simplest way of extraction of aluminium is discovered by?
Charles Martin Hall
371. Example of an amphoteric metal?
Aluminium
372. The element used in reflecting telescope and CD?
Aluminium
373. In which colour compound of Aluminium is seen in?
Blue colour
374. Double sulphate of aluminium is?
Alum
375. The metal shows the characteristics of both acid and alkali?
Aluminium
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