Question # 1

Which of the following give higher fibre strength.

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Eucalyptus

Pine

Bagnasse

Sugar cane

Which of the following is the active ingredient in ordinary household bleach.

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HCl

Cl2

NaCl

NaCIO

Which of the following metals is the most abundant in the earth's crust.

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Mg

Ca

K

Na

The full form of STM is

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Scanning Tunneling Microscope

Scientific Technical Microscope

Systematic Technical Microscope

SuperTensile Microscope

The formation of daughter DNA's from parent DNA is called.

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Transalation

Transcription

Reproduction

Replication

The total number of bond pairs around sulphur and total number of lone pairs around oxygen atoms in the Lewis structure of sulphate ion are respectively.

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4, 12

8,12

12,4

6 ,12

Which of the following statement is not correct with respect to electrometric effect.

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It is permanent effect

It is brought into play instantaneously at the demand of attacking reagent

It proceeds a polar addition reaction

The original electronic condition is restored after the removal of tacking regent.

Granulated sugar also known as.

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Brown sugar

Refined sugar

White sugar

None of these

Colour in transition metal compounds in attributed to

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Small sized metal ions

Absorption of light in UV region

Complete ns sub shell

incomplete (n-1) sub shell

Manganese steel usually contains how many percent of manganese.

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1 to 5

3 to 10

11 to 14

14 to 18

Which of the following statements is not related with entropy.

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It is a measure of disorder

It is a measure of unavailable energy

It is a function of thermodynamics probability

It is a path function

Chlorine when attached to benzene has

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+1 and + R effect

-1 and - R effect

-1 and +R effect

None of the above

When fullerencs were discovered they were thought to be

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First example of spherical aromatic molecule

First example of spherical non aromatic molecule

First example of diamond lime molecule

None of the above

The expected specific waste of food industry is.

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Meats

Nuts

Fats or Oils

All above

A colloidal system in which a liquid is dispersed in a solid is called a/an

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Emulsion

Sol

Gel

Precipitate

The Lewis formula of SOCl2, the total number of bond pairs and lone pairs of electron around sulphur are.

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2 ,1

2,2

3,1

3,0

Of the following an amphoteric hydroxide is.

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Ca(OH)2

NaOH

Be (OH)2

Li OH

Which of the following statements is not correct.

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The conductance of one cm3 of a material is called specific conductance

Specific conductance increase while equivalent conductance decreases on progressive dilution

The limiting equivalent conductance of weak electrolytes cannot be determined by extrapolation of the plot of A against concentration

The conductivity of metals is due to the movement of elctrons.

The bond along Sp2 hybridization is.

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180^o

120^o

109.5^o

160^o

Which of the following is not a polysaccharide

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Cellobiose

Cellulose

Insulin

Amylase

Which of the following impurities are present with the bauxite.

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Silica

Ferric oxide

Alumina

Both silica and ferric oxide

The element with maximum first ionization energy is.

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B

N

O

C

The aluminium alloy used to make parts of aircrafts is.

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Magnalium

Aluminium bronze

Duralumin

All of the these

If a chemical reaction in equilibrium is subjected to a change the reaction tends to more in such a direction that the effect of the change would be neutralized This is a statement of.

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Law of mass action

Le Chatlier's principle

Henery's law

Correspondence principle

Water is often treated with chlorine to

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Increases oxygen content

Kill germs

Cause sedimentation

Remove insoluble impurities.

Which of the following contains isoprene unite.

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Natural rubber

Nylong -6,6

Polyethylene

Decron

Used in TV sets and sound movies to give ready response to electrical potential

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He

Ne

Ar

Kr

Which among the following hydride is ionic in nature.

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Ammonia

Protium oxide

Calcium hydride

Sulphane

Hemimorphite is an example of.

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Orthosilicate

Pyrosilicate

Cyclic silicate

Meta silicate

Aluminum is usually extracted from

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Bauxite

Corundum

Feldepar

Alumite

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

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