Question # 1

The Schrodinger equation when solved for any system gives.

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The mean force path

The Polarizability

The energy function

The wave function

Which of the following is a pseudohalide.

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I3-

IF7

CN-

ICI

Classical smog occurs in place of.

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Excess concentration of SO2

Low temperature

High temperature

Excess concentration of ammonia

Chemical compounds which are added to reduce to reactivity of glass are called.

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Formers

Modifiers

Stabilizers

None of these

The formula of hexa borane is.

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B4H10

B6 H10

B5 H9

B8 H12

On industrial scale chlorine is prepared by

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Dennis method

Deacon's process

Plantner's process

Aludels process

Which of the following solids is a better conductor of electricity.

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Pore NaCl cyrstal

Diamond

Graphite

Marble pieces

Which of the following is not a component of AAS.

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Hollow cathode lamp

Burner

Detector

Tungsten lamp

When to a solution of weak electrolyte a strong electrolyte with a common ion is added, the dissociation of weak electrolytes is suppressed . This is known as.

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Stark effect

Salt effect

Common ion effect

Zeman effect

When calcium is heated in the flame of a Bunsen burner, the colour imparted to the flame is.

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Golden yellow

Brick red

Crimson red

Grassy green

Granulated sugar contains _____________% sucrose

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80

99.30

60

90

Sanger's reagent is

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Carbobenzyloxy chlride

Dimethyl amino sulphonyl chloride

I-Fluoro -2,4-dinitrobnzene

2,4- Dinitrophenyl hydrazine

How many stereoisomers are possible for CH3CH = CHCHCH(Br) CH3

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2- geometrical isomers

2- optical isomers

2- geometricla nad 2- optical isomers

2- geometrical and 1 optical isomers

Which of the following statement is not related to the characteristics of gaseous state.

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The inter molecular forces of attraction are not strong in gaseous state

The gases do not have definite shape and volume

The gases are characterized by low density.

The gases have low comprehensibility

Group VA of the periodic table consist of elements.

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3

4

5

6

Final paper wound in the form of a real having final moisture of about.

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6-8%

9 - 12 %

13-15 %

4 - 10%

Which of the following element has six electrons in the valance shell but cannot exhibit a maximum co valency of six.

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Sulpher

Oxygen

Salenium

Both A and B

Hydrometallurgy of copper involves extraction of copper from poor ores by which process.

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Dry process

Wet process

Both dry and wet process

None of these

Which of the following technique is not related to instrumental analysis.

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Optical method

Colorimetry

Polarography

Gravimetric analysis

What refers to the tin mill steel, without a coating.

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White plate

Black plate

Tin steel free

Dichromate tin

A mixture of ethyl iodide and n-propyl iodide is subjected to Wurts reaction. The hydrocarbon that will nto be formed is

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n-butane

n-propane

n-pentane

n-hexane

Who coined the word nanotechnology.

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Eric Drexler

Richard Feynamann

Sumio tijma

Richard smalley

Which of the group 13 element does not form M (III) idodie.

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Al

Ga

Ti

In

Which of the following metal acts as pollutant.

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Hg

Pb

Zn

Ni

All above

Brass is an alloy of

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Copper and tin

Copper and zinc

Aluminium and nickel

Leed and tin

The ease of hydrohalogenation of alkyl halide with alcoholic KOH is.

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3^o > 2^o > 1^o

3^o < 2_o <1^o

3^o > 2^o < 1^o

3^o < 2 ^o > 1^o

Halogens are coloured because.

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They are strong oxidant

Their molecules are held together by weak van der Waals forces

Their atoms absorb radiations form visible range causing the excitation of valence electrons to higher energy of levels

Their molecules absorb light radiation forming the oxcited state.

The process of removing disolved impurities from a colloidal system, by means of diffusion through a suitable membrane under the influence of an electric field , is called.

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Electrosmosis

Electrodialysis

Electrophoresis

Peptization

iodine is used as a

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Photography

Manufacture of dyes

Analgesic

All above

Which of the following detector is used for compounds containing electronegative atoms.

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Mass specdtrometer

ECD

TCD

UV-detector

The electronic configuration of chromium (Z =24) in the ground state is.

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[Ar] 4s² , 3d⁴

[Ar] 3d⁶

[Ar]4s¹, 3d⁵

[Ar]

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