Question # 1

The intensity of magnetization produced per unit strength of the applied magnetic field is called magnetic susceptibility., which of the following statements is not related with this phenomenon.

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Confirmation of structure of given compound

Complex storeochemistry

Diamagnetic nature of molecules

Paramagnetic nature of molecules.

Which is the purest form of iron.

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Pig iron

Cast iron

Wrought iron

Steel

Which of the following is not correct.

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Rusting of iron can be stopped by increasing the concentration of CO2 in water

Rusting of iron is electrochemical in nature.

Rusting of iron takes place in moist air

Rusting of iron produces hydrated iron (III) oxide

Aluminium hydroxide is.

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An acid

An amphoteric hydroxide

A base

An explosive hydroexide

How many oxygen atoms lined up in a now would fit in a one nanometer speace.

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None an oxygen atoms is bigger than 1 nm

One

Seven

None of the above

The most abundant metal in earth's crust is.

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Fe

Al

Ti

Ca

H-Bond has a preferred bonding direction like

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Ionic bond

Covalent bond

Co ordinate bond

None of these

Increasing oxygen contents in oxyacids leads to.

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An increase in thermal stability

An increase in acid strength

A decrease in oxidizing power

All above

Which type of polymers the Vulcanised rubbers is.

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Linear

Cross jinked

Branch chain

Any one of these

Which of the following cast iron is heat treated for ductility.

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Gray iron

Malleable iron

White iron

None of these

The smallest cluster of carbon atoms in Bucky balls known till today consists of ___________ carbon atoms.

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75

20

60

15

Potentiometry is based on the measurement of which physical property.

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Electrical conductance

Electrical potential

Thermal conductance

Current

The concept of telluric helisx was developed by

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Lother meyer

A.E. de Chancourtois

New lands

Doberieiner

What typical penetrator is used in Brinell hardness test

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10 mm ball

1.6 mm diameter ball

20^o needle

None of these

Stable metal ions strictures are.

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Noble gas structure

Is electron group structure

Transition metal in structure

All of the above

Which of the following statement is not relat4ed wiht SO2

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It is a colourless gas

It has sharp and pungent odour

It is moderately soluble in water

It is reduced slowly in clear air to H2S

Acid rain effects

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Human being

Crops

Aquatic life

All above

A colorless gas with pleasant odour and sweet taste.

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N2O

N2O3

NO

N2O4

Which of the following configuration is associated with biggest jump between second and third IE.

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1s2, 2s2, 2p2

1s2, 2s2, 2p6, 3s1

1s2,2s2,2p6, 3s2

1s2, 2s2,2p6

Which of the following statement is not related to MOT

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Atomic orbitals lose their identities

MOTgives as idea of denationalization

MOT uses all the orbitals and elections

It treated bond as purely covalent

As it passes into food chain, the concentration of DDT

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Remains same

Decreases

Increases

Unpredictable

The isotonic nucleotide X and Y have mass numbers 35 and 37 respectively if the atomic number of X is 17 the atomic number of Y will be.

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15

17

19

18

Which of the following does not apply to nanotechnology.

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It is a general purpose technology

It can be called Green technology

Newtonian mechanics can describe it.

It involves rearrangement of atoms

Lead pencil contain

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Lead

Lead sulphide

a mixture of lead and silica

graphite

Heisenberg's uncertainty principle precludes the exact simultaneous measurement of.

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Velocity and energy

Velocity and time

Charge density and probability

Position and momentum

Which of the following statement is not correct with reference to cell constant.

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The dimensions of cell constant is cm-1

It is used to determine the specific conductance

It is measured with KCl solution

Specific conductance does not vary with concentration.

Which of the following technique describes titrations in which a standard iodine solution is need.

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Iodometry

Iodimetry

potentiometry

Argentometry

Which of the following factors does not effect the rate of the reaction.

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Pressure

Temperature

Concentration

Catalyst

All of the above

[Ti(OH2)6]3+ gives colour

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Green

Red

Purple

Blue

The constant temperature and pressure,the rates of effusion of various gases vary inversely as square root of their denature. This is a statement of.

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Boyle's law

Charles's law

Graham's law

Daltons's law

Most electronegative element is.

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C

Si

Pb

Sn

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