Question # 1

Example of linear geometry

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XeF2

F2 and HgCl2

CdI2 AND Ag Cl3

All of the above

When a drop of detergent solution is added onto a clean towel. It spreads instead of existing as a droplet Which of the following statements explains this phenomenon.

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Detergent acts as an emulsifying agent

Detergent reduce surface tension of water

Detergent reduces surface tension of water

All of above

In their ionic compounds halogens exhinit the oxidation states of.

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-1

-2

-3

-4

The normality of 2.3 M H2SO4 solution is.

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0.46 N

0.23 N

2.3 N

4.6 N

Which of the following reaction cannot be used for the synthesis of a amino acids.

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Gabriel phthalimide

Streckers synthesis

Sorensen synthesis

Schmidt synthesis

Which of the following techniques is used for the separation of macromolecules polymers.

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Size exclusion chromatogrphy

TLC

GLC

HPLC

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

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N2H4

F2O2

H2F2

H2O2

What is a process for making glass reinforced shapes that can be general by polling resin impregnated glass stands though a die.

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Continuous pultrusion

Bulk molding

Vacuum bag forming

Computational analysis

Main constituent of all inorganic matter

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Carbon

Silicon

Tin

Lead

Estimation of nitrogen in proteins is generally arrived out by the method.

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Duma's method

Van Slyke method

Kjeldahl's method

Carius method

Most effective pesticide is

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Carbonates

Organophosphates

Organ chlorines

All of these

Which of the following statement is not true with respect to photo chemical reactions.

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These take place in the presence of light

Free energy of these reactions may be positive or negative

Light intensity affect these reactions

Temperature has significant affect n rate of these reactions

Which of the following is not a property of Ni.

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it is a soft silvery white metal

It is malleable and ductile

It is highly magnetic

It has high electrical and thermal conductivities

Which of the following is not a physical test.

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Colour test

Flame test

Beed test

Wet test

During the preparation of ethane by Kolbe's electrolytic method using inert electrodes the pH of the electrolyte.

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Increases progressively as the reaction proceeds

Decreases progressively as the reaction proceeds

Remains constant throughout the reaction

May decrease if the concentration of the electrolyte is not very high

Which is major component of Bordeaux mixture.

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Copper sulphate

Sodium chloride

Calcium chloride

Magnesium sulphate

Which of the following gas is lightest.

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Dihydrogen

Helium

Dinitrogen

Dioxygen

Which of the following statements is not related with principal requisites of water for industrial purposes.

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It should be pure and cool

It should not contain iron

It contains less quantity of line

It must be soft

A molecule is said to be chiral

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If it contains plane of symmetry

If it contains centre of symmetry

If it can be superimposed on its mirror image

None of the above

Used in producing intense light in cinematography

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Xenon

Krypton

Radon

Helium

The noble gases which does not I do not form any clathrates is.

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He

Ne

Argpm

Both He and Ne

The number of degree freedom at the triple point for the water system in.

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One

Two

Three

Zero

Turpentine is obtained from._______________

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Oak tree

Pine tree

Birch tree

Lemon tree

The aluminium alloy used to make parts of aircrafts is.

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Magnalium

Aluminium bronze

Duralumin

All of the these

Which law of thermodynamics helps in calculating the absolute entropies of varies substances.

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Zeroth law

1st law

Second law

Third Law

In the reaction RCO2Na + Na OH (CaO) ______ RH, we eliminate carboxylate group as.

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CO2

Na2CO3

-CO

CaCO3

A theoretical link between quantum mechanics and thermodynamic is.

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Electrochemistry

Kinetic theory of gases

Spectroscopic analysis

Statistical thermodynamics

According to the Grothus -Draper law

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Only absorbed light is effective in producing photo chemical changes

Only light between certain wavelengths

Light is effective only for photo chemical reactions is solution

The light absorbed in proportional to its intensity

The formula of bleaching powder is.

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Ca OCl2

CaCIO3

Ca(CIO)3)2

CaOCI

The particle motion in solids is

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Only vibratory

Only translator

Vibratory and rotatory

Only translatory

VBT does not edplain

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Absorption spectra

Color of transition metal ion

Heat of formation

All above

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