ENTRANCE TEST – 2013 | Multiple Questions and Answers

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ENTRANCE TEST – 2013 Multiple Questions and Answers.

16.	Along a period, atomic radius decreases. This gradual decrease in radius is due to

	A.	Increase in number of electrons in valence shells
	B.	Increase in number of protons in the nucleus
	C.	Decrease in number of shells
	D.	Increase in number of shells

17.	Which one pair has the same oxidation state of ‘Fe’?

	A.	FeSO4 and FeCl3
	B.	FeCl2 and FeCl3
	C.	FeSO4 and FeCl2
	D.	Fe2(SO4)3 and FeSO4

18.	Oxidation state of ‘Fe’ in K3[Fe(CN)6] is:

	A.	+2
	B.	+3
	C.	-6
	D.	-3

19.	The nature of an aqueous solution of ammonia (NH3) is:

	A.	Amphoteric
	B.	Neutral
	C.	Acidic
	D.	Basic

20.	Unpolluted rain water has a pH of:

	A.	4.9
	B.	5.6
	C.	5.3
	D.	7.0

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