IIT JEE Questions And Answers :: Chemistry Of Non Metals: part2



IIT JEE : Chemistry Of Non Metals QUESTIONS AND ANSWERS :: part2 : 11 to 15

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2014 examinations :

11.A small iodine crystal is added to each of the following aqueous solutions I (sodium sulphate), II (sodium thiosulphate), III (sodium tetrathionate and IV (sulphuric acid). In which solution the purple colour disappears.

Only in I
I and III
Only in III
III and IV.

12.Which of following substance contains magnesium as well as silicon?

Feldspar
Cryolite
Asbestos
Mica.

13.In general, the boron trihalides act as

Strong reducing agent
Lewis acids
Lewis bases
Dehydrating agents.

14.Carborundum is a very hard substance (only next to diamond in hardness) is mainly a

nitride of silicon
zirconide of silicon
boride of silicon
carbide of silicon.

15.Which compound of boron is used as a mild antiseptic for washing of eyes under the name boric lotion?

Sodium borate
Boric acid
Borax
Sodium metaborate.

More Chemistry Of Non Metals QUESTIONS AND ANSWERS available in next pages

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