Question # 1

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

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Br₂

F₂

I₂

Cl₂

The most electronegative element of group V-A is

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N

P

Sb

Bi

--------------- element forms an ion with charge 3⁺

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Beryllium

Aluminium

Carbon

Silicon

Cannizzaro's reaction is not given by

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Formaldehyde

Acetaldehyde

Benzaldehyde

Trithylacetaldehyde

Which one of the following gases is used welding purpose usualy.

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Methane

Ethane

Ethene

Acetylene

Which one of the following compound does not react with NaOH and I2 and also does not form Iodoform.

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C2H5OH

CH3CHO

CH3-CO-CH3

C2H5-O-C2H5

In pyrite burner, the gas produced is.

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SO3

SO2

CO2

NO

Alkyl halides are considered to be very reactive compounds towards nucleophile because

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They have an electrophilic carbon

They have an electrophilic carbon and a good leaving group

They have an electrophilic carbon and a bed leaving group

They have a nucleophilic carbon and a good leaving group

The flavour of amylacetate is

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Orange

Apricot

Banana

Pineapple

Which of the following is non-typical transition element

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Cr

Mn

Zn

Fel

Sodium is collected over molten sodium chloride in Down's cell, because.

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It does not react with NaCl

It is lighter in weight and floats on molten NaCl

Its reactivity is greater than NaCl

None of these

The reaction between Cu and conc. H2SO4 produces

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SO3

SO2

H2

Cu + ions

Synthetic rubber is made by polymerization of.

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Chloroform

Acetylene

Divinylactylene

Chloroprene

Paraldehyde is polymer of.

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HCHO

CH3CHO

CH3COCH3

CH3CH2-CH2OH

The catalytic oxidation of methane produces

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CO + H₂O

CO₂+ H₂O

C₂+ H₂O

H₃C - OH

Which one of the following is co polymer

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PVC

Polyvinyl acetate

Nylon -6,6

Polyethene

The brown gas formed, when metal reduce HNO₃

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NO

NO₂

N₂O₃

N₂O₅

Which compound is the more reactive

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Benzene

Ethene

Ethane

Ethyne

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