Question # 1

The electrolytic method super passes all other methods due to.

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Furity

Cheapness

Easy available

All above

Albumin is classified as

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Simple protein

Conjugated protein

Lipoprotein

Derived protein

In which of the following group, each member given a positive iodoform test.

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Methanol, ethanol, propanone

Ethanol, isopropyl alcohol, methanol

Ethanol, ethanal, isopropyl alcohol

Propanal 2-propanol, propanone

What refers to the removal of zinc from brasses?

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Dezincification

Graphitization

Stabilization

Denitration

The common oxidation state of lanthanides is.

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+3

+2

+1

+4

The change in the concentration of the reactant of product per units time is called.

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Order of the reaction

Melecularity of the reaction

Rate of reaction

None of the above

Which of the following materials is not suitable as adsorbent for chromatography.

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Silica gel

Activated charocal

Alumina

Calciu7m chloride

1-Chlorobutane on reaction with alcohols potash gives.

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1- butane

1-butanol

2- butane

2- butanol

Used in producing intense light in cinematography

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Xenon

Krypton

Radon

Helium

Atomicity of which of the following pair of elements is not same as hydrogen.

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Phosphorus, Nitrogen

Nitrogen, Argon

Nitrogen, iodine

Iodine, sulphur

The full form of STM is

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Scanning Tunneling Microscope

Scientific Technical Microscope

Systematic Technical Microscope

SuperTensile Microscope

Bitumen is used in

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Electric generators

Road surfacing

Coal tar

All of above

The ionization energy of N is more than that of oxygen becasue.

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Nitrogen has half filled p orbitals

Nitrogen atom is smaller in size than oxygen atom

Nitrogen contains less number of electrons

Nitrogen is less electronegative

Which of the following statements regarding covalent bond is false.

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The electrons are shared between atoms.

The bond in non -directional

The strength of the bond depend upon the extent of overlapping

The bond formed may be polar or non-polar

Which one of the following set of raw material is most suitable for manufacture of urea.

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CH4N2 and CO2

H2CO2 and H2O

H2O N2 and H2

H2O N2 AND KCl

Highly dangerous acid and produces severe wounds on the skin.

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HCIO

HCIO2

HCIO3

HCIO4

What is the effect of aluminum in cast iron.

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To increase hardness above 0.5 %

To deoxidize molten cast iron

To affect machinability, ductility and shrinkage depending on form

Both A and B

Which one of the following ions is colourless.

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Cu+

Co2+

Ni2+

Fe3+

Poise is a unit of.

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Refractive index

Optical activity

Fluidity

Viscosity

Which of the following is not a property of Cr.

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it is brilliant silvery metal

it is malleable

It can take very high polish

Its surface is tarnished easily

The formula of bleaching powder is.

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Ca OCl2

CaCIO3

Ca(CIO)3)2

CaOCI

Which of the following method is used to separate small molecules form the larges molecules from the larger molecules in diffusing through a membrane.

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Dialysis

HPLC

FPLC

TLC

The emission of light characteristics of metal and correlation of intensity of the light emitted with concentration of that metal forms the basis of.

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Roman spectroscopy

IR spectroscopy

Flame photometry

Rotational spectroscopy

Yellow green flame is observed with

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Calcium salt

Barium salt

Strontium salt

Sodium salt

CFT can very well explain

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Color

Magnetic properties

Spectra of transition metal

All

How many planes of symmetry are present in benzene.

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1 plane

3 planes

5 planes

7 planes

Which of the following has the highest lattice energy

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LiCl

NaCl

KCl

CaCl

What ASTM test for shear strength is designated for plastics.

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D 732

D 790

D 695

D 638

Xenon diflouride is obtained by irradiating a mixture of xenon and fluorine with light from a high pressure.

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Mercury arc

Tungeston arc

Xenon arc

None of above

What group of steels are molybdenum high sped steels.

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Group A

Group D

Group M

Group H

Which of the following products is obtained when but 2-ene is treated with perchloric acid.

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CH3CHO only

CH3COOH only

CH3CHO and CH3COOH

CH3CH2COOH + HCOOH

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