Question # 1

Which acid can not be stored in glass bottles.

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HCl

HF

H2SO4

HNO3

The anhydride of HCIO4 is

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CIO3

CIO2

Cl2O5

Cl2O7

Which halogen occurs naturally in a positive oxidation state

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Fluorine

Chlorine

Bromine

Iodine

The chemical formula of Sodium Bromite is.

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NaBrO

NaBrO2

NaBrO3

NaBrO4

The halogens ae best described by which of the following statements.

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Their outer shell is complete

Most of them are colourless

They all are oxidizing agent

They all are gases at room temperature

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 of the following is not use of chlorine.

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Formation PVC

Formation of mustard gas

Disinfectant and bleaching agent

Formation of sodium chloride

Which of the following hydrogen halide is the weakest acid in solution.

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HF

HBr

HI

HCl

___________ is use as a cooling medium for nuclear reactors

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Ne

He

Ar

Kr

Which substance is used in photography

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AgCl

AgBr

AgI

Ag3PO4

Which one of the following noble gases is least polarizable

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He

Ne

Ar

Kr

Which is the strongest acid

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HCIO

HCIO₂

HCIO₃

HCIO₄

Chlorine heptoxide reacts with water to form

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Hypochlorous acid

Chloric acid

Perchloric acid

Chlorine and oxygen

Bleaching powder may be produced by passing chlorine over

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calcium carbonate

hydrated calcium sulphate

calcium hydroxide

magnesium hydroxide

Which of the following hydrogen halide is the weakest acid in solution

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HF

HBr

HI

HCl

The anhydride of HCIO₄is

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CIO₃

CIO₂

Cl₂O₅

Cl₂O₇

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

What is the oxidation state of Xenon in XeOF2

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0

+2

+4

+6

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