Question # 1

The anhydride of HCIO₄is

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CIO₃

CIO₂

Cl₂O₅

Cl₂O₇

XeF6 n hydrolysis produces.

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XeOF2

XeOF3

XeOF4

XeF2

Chlorine heptoxide reacts with water to form

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Hypochlorous acid

Chloric acid

Perchloric acid

Chlorine and oxygen

Which one of the following gases exist in monoatomic form.

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Ozone

Nitrogen

Krypton

Phosphine

Bleaching powder may be produced by passing chlorine over

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calcium carbonate

hydrated calcium sulphate

calcium hydroxide

magnesium hydroxide

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

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HF

HBr

HCl

HI

Hydrogen bond is the strongest between the molecules of

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HF

HCl

HBr

HI

An element that has high ionization energy and tends to be chemically inactive would most likely to be

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an alkali metal

a transition element

a noble gas

a halogen

Bleaching powder may be produced by passing chlorine over.

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Calcium carbonate

Hydrated calcium sulphate

Anhydrous calcium sulphate

Calcium hydroxide

Which halogen will react spontaneously with Au to produce Au3+

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Br2

F2

I2

Cl2

Chlorine heptoxide (CI₂O₇) reacts with water to form

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Hypochlorous acid

Chloric acid

Perchloric acid

Chlorine and oxygen

The anhydride of HCIO4 is

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CIO3

CIO2

Cl2O5

Cl2O7

Bleaching powder contains available chlorine approximately

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100%

70-80%

35-40%

10-20%

Which one is perchloric acid

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HClO

HClO₃

HClO₄

___________ is use as a cooling medium for nuclear reactors

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Ne

He

Ar

Kr

Which one of the following noble gases is least polarizable

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He

Ne

Ar

Kr

Which one of halogens is a liquid

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F₂

Cl₂

Br₂

I₂

Which gas has highest boiling points.

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He

Ne

Ar

Kr

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