Question # 1

In pyrite burner, the gas produced is.

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SO3

SO2

CO2

NO

Which woody raw material is used for the manufacture of paper pulp.

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Cotton

Bagasse

Poplar

Rice straw

f-block elements are also called

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non typical transition elements

outer transition elements

normal transition elements

inner transition elements

The bond angle between any two SP²Hydridized orbitals is of

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180°

109.5°

120°

107.5°

Which form interstitial compounds.

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Fe

Ni

CO

All of those

In primary alkyl halides, the halogen atom is attached to a carbon which is further attached to how many carbon atoms.

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One

Two

Three

Four

Which element reacts with alkali and H2 gas is produced.

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Be

Mg

Ca

Sr

Which on eof the following alkaline earth metal form peroxide when heated with oxygen at 600 ^oC

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Magnesium

Calcium

Strontium

Barium

Which meal is least reactive

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Li

NaOH

K

Pb

A cyanohydrin is formed by the reaction of

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Alcohol and HCN

Ketone and NH3

Aldehyde and NH2OH

Aldehyde and HCN

Which elements are deposited at the cathode during the electrolysis of brine in diaphragm cell

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H₂

Ba

Ra

Rn

Chlorine heptoxide (CI₂O₇) reacts with water to form

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Hypochlorous acid

Chloric acid

Perchloric acid

Chlorine and oxygen

Which one of the following compound has octane number 100.

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2,2,4-trimethyl petane

n- pentane

2,4-dimethyl pentane

2- methyl pentane

Elimination Bimolecular reactions involve

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Second order kinetics

First order kinetics

Third order kinetics

Zero order kinetics

Which acid can not be stored in glass bottles.

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HCl

HF

H2SO4

HNO3

Which class of compounds can not show positional isomerism.

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Alkanes

Alkene

Alkynes

Alcohol

Which one is perchloric acid

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HClO

HClO₃

HClO₄

Ethyne on oxidation with strong alkaline KMnO4 changes to

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Ethyl alcohol

Acetaldehyde

Vinyl alcohol

Glyoxal

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