Question # 1

In the particular reaction for the valueK_{c 1 x}10^-25which statement is correct :

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Almost forward reaction is completed.

Amount of reactant is negligible as compared to product.

Amount of product is negligible as compared to reactant.

Amount of product is equal to amount of reactant.

Which of the following is a biodegradable polymer?

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Cellulose

Polyethene

Polyvinyl chloride

Nylon-6

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Introduction of an inert gas at constant volume

Introduction of PCl₃(g) at constant

Introduction of PCl₅(g) at constant volume

Introduction of Cl₂at constant volume

[Ti(H₂O)₆]⁺³ion absorbs colour:

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Blue

Yellow

Green

Red

Which of the following is a steroid

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Vitamin A

Vitamin B

Vitamin C

Vitamin D

In an ooctahedral crystal field splitting, the number of orbitals pushed down in energy is

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3

2

5

Zero

Chromatography is derived from Greek word 'Khromatos' means:

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Type writting

Printing

Color writing

Writing

In a hydrogen-oxygen fuel cell, combustion of hydrogen occurs to

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Generate heat

Remove adsorbed oxygen from electrode surfaces

Produce High purity water

Create potential difference between two electrodes

The conductivity of strong electrolyte

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Increases on dilution slightly

Does not change on dilution

Decreases on dilution

Depends on density of electrolyte it self

The amount of electricity that can deposit 108 g of silver from silver nitrate solution is

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1 ampere

1 coulomb

1 faraday

2 ampere

The free spaces between the metal atoms and its crystal lattice are called

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Valance spaces

Empty spaces

Interstices

None

Sodium phenoxide reacts with CO₂at 400 K and 4.7 atm pressure to give

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Sodium salicylate

Salicyl aldehyde

Catechol

Benzoic acid

The atomic radius of hydrogen is 37

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Pecometer

Manometer

Angstrom

Micrometer

The word paper is derived from the name of which reedy plany

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Rose

Sun flower

Papyrus

Water hyacinth

The solid remained on filter paper during the filtration is called the :

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Substance.

Residue.

Undue.

Filtrate.

The rate of reaction b/w two specific time intervals is called :

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Instantaneous rate of reaction.

Average rate of reaction.

Rate of a reaction.

Minimum rate of a reaction.

Almost forward reaction is complete when value of k_{c :}

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Neither larger nor very small.

Very small.

Very large.

Negligible.

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Moles per dm³

Partial pressures

Number of moles

Mole fractions

Electrons arranged in orbitals according to the increasing order of their n + l values, this rule is named as

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Hund's rule

Heisenberg's principle

Paulit exclusion principle

Auf bau principle

The element which has a simple cubic lattice in solid state is

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Se

Te

Po

None of these

Which is the longest period of the periodic table

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5th

7th

6th

2nd

The de-Brogile wavelength of a particle with mass 1g and velocity 100 m/s is

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6.63 x 10^-33m

6.63 x 10^-34m

6.63 x 10^-35m

6.65 x 10^-35m

During electrolysis, electrons are :

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Lost by anions and gained by cations

Gained by anions and lost by cations

Gained only

Lost only

The degree of polarity of molecule is known as its

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Dipole moment

Moment arm

Bond energy

Ionic character

Which of the following does not give iodoform test?

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Ethanol

Ethanal

Acetophenone

Bezophenone

Number of neutrons in heavy hydrogen atom is

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0

1

2

3

A solution having pH = 4 its OH^-ion concentration in mole dm^-3is

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1.0 x 10^-4

1.0 x 10^-10

1.0 x 10^-14

1 x 10⁰

Every sample of matter with uniform properties and a fixed composition is called a :

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Solid

Liquid.

Phase.

Gas.

The open chain organic compounds are called

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Linear compounds

Aromatic

Aliphatic

Both A and B

In the modern periodic table the elements are placed in the ascending order of their

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Atomic masses

Melting points

Boiling points

Atomic numbers

The bond length b/w atoms of hydrogen in the hydrogen molecules is:

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7.54 nm.

0.0754 nm.

0.754 nm.

0.00754 nm.

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