Question # 1

CNG is stored under

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Power genertion

Electric Generators

Solvent

All of above

The rate constant of a reaction has same units as the rate of the reaction The reaction is of.

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Second order

First order

Three order

Zero order

Which of the following molecules can oxhibit geometrical isomerism.

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CH3CH = CH2

CH3CH = CHCH3

(CH3)2 C = CH2

CH3CH = C(CH3)2

If Principal quantum number n = 4 the quantum number l can have calue.

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1,2,3 and 4

0,1,2 and 3

1,2 and 3 only

None of the abvoe

Which of the following has highest ionization energy.

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Oxygen

Argon

Barium

Caealum

Which of the following methods does not give the weight average molecular weight.

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Sedimentation equilibrium

Sedimentation velocity

Light scattering

Osmotic method

Which of the following statement is incorrect.

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An alloy is a mixture of two or more metals

An alloy is a mixture of two or more metal and non metal elements that have metallic properties

An alloy has a fixed composition

An amalgam is an alloy containing Hg

Which of the following phenomena is not explained by the classical mechanics.

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Black body radiation

Photoelectric effect

Atomic and molecular spectra

Heat capacities of solids

All of the above

Which of following is used as make up chemical in Kraft process.

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Na2CO3

KCl

Na2SO4

NaOH

Elements of group 14 have the electronic configuration of their outer shell as

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ns2 np3

ns2 np2

ns2 np6

ns2

Granulated sugar contains _____________% sucrose

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80

99.30

60

90

The compounds whose formation require a host compound and a guest compound are called.

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Exclusion compounds

Inclusion compounds

Crystal compounds

None of the above

Which of the following statement is related with CO.

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It is a colorless and tasteless gas

It has less affinity to words hemoglobin

It has a boiling point of -192 ^oC

It is a dangerous asphyxiant

Which among the following is insoluble in water.

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LiOH

KOH

NaOH

RbOH

A unit cell having dimension , a = b c, alpha, beta, gama = 90^o is known as.

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Cubic

Hexagonal

Orthorhombic

None of them

The principal ores of copper are

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Copper sulphides

Copper oxides

Both sulphides and oxides

Copper carbonate

Alums are generally used

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In Dying and water proofing of fabric

In arrest bleeding

IN water purification

All above

Which of the following is not an alkali metal.

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Potassium

Francium

Sodium

Strontium

Which of the following molecule does not contain the covalent bond between similar atoms.

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N2H4

F2O2

H2F2

H2O2

Molecular weight of proteins may be determined by

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Osmotic pressure measurements

Sedimentation methods

Light scattering methods

All of these

In Serpekr's process the ore is treated with which of the following.

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Carbon

Nitrogen gas

Both A and B

None of these

Which of the following is not strong electrolytes.

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HCl

H2SO4

HNO3

CH3COOH

The function of boiling the sodium extract with conc. HNO3 before testing the halogens is

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To make solution clear

To make the solution acidic

To bring common ion effect

To destroy CN- and S2- ion

What is considered as the general purpose oldest type and widely used case iron.

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Grey iron

Alloy iron

Black iron

Ductile iron

Which of the following analytical techniques can be used to extract metal ion chelates.

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Solvent extractions

Evaporation

GC

Distillation

The number 7.43 is rounded to

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7,44

7.4

7.45

7.3

The branch of chemistry dealing with the study of reactions in the Uv visible region of the spectrum in known as.

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Kinetics

Photo chemistry

Surface chemistry

Catalysis

Which of the following is not an androgen i.e. male sex hormones.

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Androsterone

Testosterone

Oestrone

All of these are make hormone

The following alloys are the chief alloys that are die cast except.

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Zinc alloys

Magnesium alloys

Manganese alloys

Nickel alloys

An induction of dipole or polarity in non polar bond, and consequent electron shifting along a chain of atoms is known as.

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Inductive effect

Resonance effect

Hyper conjugation

None of the above

The tyndall effect was used by Zsigmondy to device.

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The ultramicroscope

The ultracentrifuge

The osmometer

Electrodialysis

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