Question # 1

If the number of gas molecules are doubled in the certain volume the pressure is:

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Increased to four times

Remains unchanged

Doubeld

Decrease to half

Property due to which water acts as a universal solvent is

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Polarity

It's ability to make hydrogen bond

Both A and B

Strong dipole dipole interaction

Ester with raspberry flavor

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Amyl acetate

Isobutyl formate

Amyl butyrate

Octyl acetate

The product of the molecular mass of repeating units and the D.P is called of polymer:

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Molecular formula

Empirical formula

Molecular mass

Empirical mass

Cl₂is a gas while iodine is a solid due to

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stronger London forces with high polarizability

greater electro negativity of Cl than iodine

stronger dipole dipole forces

iodine is colored while chlorine is colourless

In which of the following compounds H-binding is not present?

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ethanol

ether

water

ammonia

Number of H+ ions when 0.1 mole of sulfuric acid is completely ionized in water

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4x6.022x10ê23

1×6.022x10ê23

2x6.022 x10ê23

2x6.022x10ê22

The boiling point of glycerin at 1 atmospheric pressure is:

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290°C

390°C

190C°

210°C

An example of ion-dipole force is solution of

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NaCl in water

Glucose in water

Bromine in benzene

Ethanol in water

Van der Waals equation explains the behaviour of

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Real gases

Mixture of gases

Ideal gas

Diatomic gases

The molar volume of CO₂ is maximum at:

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S.T.P. (0^∘C and 1 atm)

127^∘C and 1 atm

0^∘C and 2 atm

273^∘C 2atm

In exothermic reversible reaction increase in temperature shift the equilibrium to :

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Remains unchanged.

Product side.

Reactant side.

None of above.

Which technique is used to determine the absorption of radiations?

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Dilatometer method

Optical rotation method

Spectrometry

Refractometric method

When quantity of electricity passed is one faraday then the mass deposited at the electrode is equal to

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One gm, atomic weight

One gm, Equivalent

Eletrochemical equivalent

None of the above

The structure of ICI₂is

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Trigonal

Trigonal bipyramidal

Octahedral

Square planar

Transition metals form complexes due to the participation of partially filled

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f-orbitals

d-orbitals

s-orbitals

p-orbitals

The correct order of reactivity of halogens with alkanes is

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l₂> Br₂> Cl₂> F₂

l₂> Cl₂> F₂> Br₂

F₂> Cl₂> l₂> Br₂

F₂> Cl₂> Br₂> l₂

Na reacts with phenol to produce

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H₂gas

Benzene

CO₂gas

CO gas

The maximum number of electrons in a subshell for which l = 3 is

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14

10

8

4

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K_p> K_c

K_c> K_p

K_p= K_c

None of these

Which alcohol may be oxidised to a product which react with 2,4-dinitorphenylhydrazine reagent but not with Fehling's reagent

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Butan-1-ol

Butan-2-ol

2-methylpropan-1-ol

2-methylpropan-2-ol

Which compound shows hydrogen bonding

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C₂H₆

C₂H₅CI

CH₃-O-CH₃

C₂H₅OH

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