Question # 1

Which statement is incorrect about standard hydrogen electrode

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Its oxidation and reduction potential is zero

It consists of Pt wire dipped on 1 molar HCI solution

The electrolyte is 1 molar NaOH solution

H₂gas is passes in it at 1 atmospheric pressure

Which reagent is used to reduce a carboxylic group to an alcohol

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H₂/Ni

H₂/Pt

NaBH₄

LiAIH₄

Which of the following equations represents the action of heat on NaHCO₃

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Energy can neither be created nor destroyed, although it can be transformed from one form to another. This is a statement of

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Law of conservation of matter

Law of definite proportions

Law of conservation of energy

None of these

I-Chloropropane has two isomers, it is an example of

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Chain isomerism

Position isomerism

Functional group isomerism

Metamerism

Red P can be obtained form white P by

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Heating it with a catalyst in an inert atmosphere

Distilling it in an inert atmosphere

Dissolving it in CS₂and crysllizing

Melting it ad pouring the liquid into water

Among the following the most reactive towards alcoholic KOH is

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CH₂= CHBr

CH₃COCH₂CH₂Br

CH₃CH₂Br

CH₃CH₂CH₂Br

Aluminium oxide is:

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Acidic oxide

Basic oxide

Amphoteric oxided

None of these

Bond angle is minimum for

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H₂O

H₂S

H₂Se

H₂Te

Which has soapy touch?

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Na2B4O7

H3BO3

Ca2B6O11

HBO2

If initial concentration of the reactants and half life period of the reaction is known, then we can determine

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Average rate of reaction

Order of reaction

Rate constant k

Instantaneous rate

Turnbull's blue is a compound called?

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Ferricyanide

Ferrous ferricyanide

Ferrous cyanide

Ferri - Ferro cyanide

When the rate of reaction is entirely independent of the conc. of reaction molecules then order of reaction is

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Zero

First

Second

Third

If ketone reacts with Grignard's reagent, it also produces alcohol, But it will be a

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primary alcohol

Secondary alcohol

Tertiary alcohol

Aromatic alcohol

Which compound is called a universal solvent?

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H₂O

CH₃OH

C₂H₅OH

CH₃----O---CH₃

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When ethyl iodide and n-propyl iodide are allowed to react with sodium metal in ether, the number of alkanes that could be produced is

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Only one

Two alkanes

Three alkanes

Four alkanes

The structure of complex hydrides is

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Tetrahedal

Trigonal

Octahedral

Square planar

Allyl chloride on dehydrochlorination gives

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Propadiene

Propylene

Allyl alcohol

Acetone

Transition metals mostly are

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Diamagnetic

Paramagnetic

Neither diamagnetic nor paramagnetic

Both diamagnetic and paramagnetic

Which is more active ?

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Alkanes

Alkenes

Alkynes

Benzene

The state of equilibrium refers to

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State of rest

Dynamic state

Stationary state

State of inertness

Aldehydes can be distinguished from ketones by using

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Schiff's reagent

Conc. H₂SO₄

Anhy. ZnCl₂

Resorcinol

The essential component of organic compound is

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O

C

P

N

Energy of electron in first orbit of H atom is

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-45.32 KJ/mole

-82.08 KJ/mole

-52.53 KJ/mole

-1313.31 KJ/mole

Dehydration of allcohol gives:

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Alkane

Alkene

Aldehyde

ketone

Which one of the following is a water soluble vitamin

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D

K

A

Ascorbic acid (Vic C)

The self linking of carbon atoms is called

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Chelation

Isomerism

Catenation

None of the above

Result of ozone hole is

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Green house effect

Global warming

Acid rain

UV rays reach the earth

Misch mental is

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An alloy of Aluminium

A mixture of chromium and lead chromate

An alloy of lanthanoid metals

An alloy of copper

Most common oxidation states shownby cerium are

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+2, +4

+3, +4

+3, +5

+2, +3

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