Question # 1

Compound X & Y give effervesce with Na2CO3, solution. X gives a white ppt with ammonical AgNO3 while Y gives sweet smell compound on heating with alcohol X &Y are

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Formic acid & acetic acid

Acetone & formic acid

Acetaldehy de & acetic acid

Acetic acid & acetone

A polymer may be

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Linear

Branched

Cross linked

All of these

Vegetables oils are

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Unsaturated fatty acids

Glycerides of unsaturated fatty acids

Glycerides of saturated fatty acids

Essential oils obtained from plants

Pan is an irritant to human beings and it affects

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Eyes

Nose

Hair

Skin

Which is not the affect of polluted air on environment

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acid rain

smog

ozone

global warming

A single chloride free redical can destroy bow many ozene molecules?

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100

100000

10000

10

Which of the following metal does not liberate hydrogen on reaction with acid?

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Mg

Pt

Zn

Ca

The solubility of A2B3 is X mole dm-3. Its Ksp is?

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6X(5)

36X(5)

64X(5)

108X(5)

The molecules of CO2, in dry ice form the

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covalent crystals

molecular crystals

none of these crystals

ionic crystals

Which one of the following gases has lowest density at room temperature:

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NH₃

Ne

N₂

CO

The attracted forces which are created due to repulsion of electronic cloud of the molecules are:

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ion-dipole forces

dipole-dipole forces

dipoles-induced dipole forces

instantaneous dipole-induced dipole

When an electron is added to a uni positive ion we get:

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Cation

Molecule

Neutral atom

Anion

E₂has molecularity :

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One

Two

Three

Half

The limiting line of Blamer series in hydrogen spectrum lies in

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Visible regions

Ultraviolet region

Infrared region

x-rays region

When H₂and I₂are mixed and equilibrium is attained, then

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Amount of HI formed is equal to the amount of H₂dissociated

HI dissociation stops

The reaction stops completely

None of these

The heat contents of all the elements in their standard states are taken to be

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1

2

0

None

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

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H2/Ni

H2/Pt

NaBH4

LiAIH4

Maximum number of active hydrogens are present in

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Acetic acid

Glycerol

Methane

Methanol

Which of the following pairs are chemically dissimilar?

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Na and K

Ba and Sr

Zr and Hf

Ca and Zn

For every reaction occurring in the body three is at least one type of

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Enzyme

Vitamin

Protein

Amino acid

An alcohol with molecular formula C_nH_2n+1OH has a chiral carbon atom but does not react with MnO^-₄/H⁺what is the least number of carbon atoms such an alcohol could possess

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5

6

7

8

Glass calorimeter reaction is one which we measure

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Enthalpy of combustion

Enthalpy of reaction

Pressure volume work

None of above

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