Question # 1

Stability of halogen molecules decreases from

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F2 to I1

Cl2 to I2

I2 to F2

I2 to Cl2

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 element form maximum compounds with Xenon

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F

Cl

Br

I

XeF6 n hydrolysis produces.

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XeOF2

XeOF3

XeOF4

XeF2

The gas used in bactericidal lamps is

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Be

Ar

Kr

Xe

___________ is use as a cooling medium for nuclear reactors

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Ne

He

Ar

Kr

Which noble gas is used in radiotherapy

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Neon

Argon

Krypta

Radon

Which one of the following acids acts as oxidizing agent but never a reducing agent.

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HCIO

HCIO2

HCIO3

HCIO4

Which raw material is used for preparation of bleaching powder.

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Cl2 and H2O

Cl2 and Lime

Cl2 and HOCl

HCl and Lime

Which one is chlorous acid

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HCIO

HCIO₂

HCIO₃

HCIO₄

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

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Br₂

F₂

I₂

Cl₂

Which one is perchloric acid

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HClO

HClO₃

HClO₄

Which of the following noble gas is used for arc welding and cutting

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Helium

Argon

Xenon

Radon

Which one of the following gases exist in monoatomic form.

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Ozone

Nitrogen

Krypton

Phosphine

Which halogen will react spontaneously with Au to produce Au3+

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Br2

F2

I2

Cl2

What is the oxidation state of Xenon in XeOF2

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0

+2

+4

+6

An element that has a 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

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