Question # 1

Which one of the following noble gases is least polarizable

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He

Ne

Ar

Kr

Which one is perchloric acid

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HClO

HClO₃

HClO₄

Bromine can be liberated from KBr solution by the action of.

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I2 solution

Chlorine

NaCl

KI

The anhydride of HCIO₄is

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CIO₃

CIO₂

Cl₂O₅

Cl₂O₇

Which one of the following uses is not correctly related with the halogen.

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fluorine -------- Teflon

Chlorine ---------Bleaching powder

Bromine ---------------PVC plastics

Iodine -----------Iodex

Stability of halogen molecules decreases from

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F2 to I1

Cl2 to I2

I2 to F2

I2 to Cl2

Which statement is correct about the given reaction.

2NaOH + Cl2 --------------- NaCl + NaCIO + H2O

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Cl is oxidized and O is reduced

Cl is reduced and O is oxidized

Cl is oxidized as well as reduced

Neither Cl nor oxygen is reduced or oxidized

Chlorine heptoxide reacts with water to form

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Hypochlorous acid

Chloric acid

Perchloric acid

Chlorine and oxygen

Which gas has highest boiling points.

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He

Ne

Ar

Kr

Which halogen will react spontaneously with Au(s) to produce Au³⁺

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Br₂

F₂

I₂

Cl₂

Iodine deficiency in diet is known to cause.

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Beri Beri

Goiter

Rickets

Night blindness

The chemical formula of Sodium Bromite is.

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NaBrO

NaBrO2

NaBrO3

NaBrO4

Which one of the following has highest melting and boiling points.

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HF

HBr

HCl

HI

Refrigeration capacity of liquid neon is greater than liquid helium by

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80 times

50 times

40 times

10 times

The most ionic is

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HF

HCl

HBr

HI

Bleaching powder may be produced by passing chlorine over.

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Calcium carbonate

Hydrated calcium sulphate

Anhydrous calcium sulphate

Calcium hydroxide

The anhydride of HCIO4 is

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CIO3

CIO2

Cl2O5

Cl2O7

Which is the second most abundant element in the universe

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H

He

CO

C

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Chemistry Fsc Part 2 Chapter 5 Online Test MCQs With Answers

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