Chemistry-Objective Related Question Answers
426. When quick lime is mixed with Carbon dioxide it turns into?
Milky colour
427. The compound used for producing lime mixture?
Calcium Compound
428. The chemical name of Chalk?
Calcium Carbonate
429. The whitest element compound known is?
Titanium
430. Titanium was discovered by?
William Gregor
431. White paints are made using the oxides of?
Titanium
432. The metal known as "Metal of future"?
Titanium
433. The metal known as 'wonder metal'?
Titanium
434. The most abundant metal present on the surface of moon?
Titanium
435. Titanium is separated from?
Ilmenite
436. The scientist who isolated chromium for the first time was?
Louis Nicolas Vauquelin
437. The element shows antiferromagnetic property?
Chromium
438. Manganeese was discovered by?
Carl Sheele
439. Manganese was Isolated for the first time by?
Johan Gottlieb Gahn
440. The fifth most abundant metal in Earth's crust?
Manganese
441. Latin name of Iron?
Ferrum
442. Boiling point of Iron?
3134K
443. Melting point of Iron?
1811K
444. Element present in haemoglobin?
Iron
445. Least pure form of Iron?
Cast Iron
446. Industrial production of steel?
Bessemer process
447. Iron coated with Zinc is called?
Galvanized Iron
448. Iron coated with Tin is called?
Tin Plating
449. When Iron rusts; its weight?
Increases
450. The reason for the brown colour of soil and rock is the presence of?
Iron Oxide
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