Fsc Part 2 Chemistry Online Test-Chapter 5 The Halogens and the Noble Gases | ilmkidunya

Chemistry Fsc Part 2 Chapter 5 Online Test

Sr. #	Questions	Answers Choice
1	An element that has high ionization energy and tends to be chemically inactive would most likely to be	an alkali metal a transition element a noble gas a halogen
2	Which halogen occurs naturally in a positive oxidation state	Fluorine Chlorine Bromine Iodine
3	Bleaching powder may be produced by passing chlorine over	calcium carbonate hydrated calcium sulphate calcium hydroxide magnesium hydroxide
4	The anhydride of HCIO₄is	CIO CIO<sub>2</sub> CIO<sub>3</sub> CI<sub>2</sub>O<sub>7</sub>
5	Which halogen will react spontaneously with Au_(s)to produce Au³⁺	Br<sub>2</sub> F<sub>2</sub> I<sub>2</sub> Cl<sub>2</sub>
6	Chlorine heptoxide (CI₂O₇) reacts with water to form	Hypochlorous acid Chloric acid Perchloric acid Chlorine and oxygen
7	Which of the following hydrogen halide is the weakest acid in solution	HF HBr HI HCl
8	Which of the following noble gas is used for arc welding and cutting	Helium Argon Xenon Radon
9	___________ is use as a cooling medium for nuclear reactors	Ne He Ar Kr
10	Which one is chlorous acid	HCIO HCIO<sub>2</sub> HCIO<sub>3</sub> HCIO<sub>4</sub>
11	Which is the strongest acid	HCIO HCIO<sub>2</sub> HCIO<sub>3</sub> HCIO<sub>4</sub>
12	The anhydride of HCIO₄is	CIO<sub>3</sub> CIO<sub>2</sub> Cl<sub>2</sub>O<sub>5</sub> Cl<sub>2</sub>O<sub>7</sub>
13	Which halogen will react spontaneously with Au(s) to produce Au³⁺	Br<sub>2</sub> F<sub>2</sub> I<sub>2</sub> Cl<sub>2</sub>
14	Hydrogen bond is the strongest between the molecules of	HF HCl HBr HI
15	Which one is perchloric acid	HClO HClO HClO<sub>3</sub> HClO<sub>4</sub>
16	Which is the second most abundant element in the universe	H He CO C
17	Which one of halogens is a liquid	F<sub>2</sub> Cl<sub>2</sub> Br<sub>2</sub> I<sub>2</sub>

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