Question # 1

The titration involving oxidation reduction reactions is called.

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Complex titration

Simplex titration

Redox titration

Acid base titration

The percentage of nitrogen in ammonium sulphate is__________%

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27

21

23

19

Which substance is used as filler or additive in paper making.

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Starch

Glucose

Cellulose

Maltose

Which of the following process is involved in getting back nitrogen into atomosphere.

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Nitrification

Denitricication

Ammonification

All above

The equation which relates the reaction rates and equilibrium constants of many reactions is known as.

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Taft equation

Hammett equation

Differential equation

Linear equation

Molten iron withdrawn from the blast furnace is called.

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Wrought iron

Pig iron

Bessemer iron

Stainless steel

Graphite is a good conductor of electricity because is.

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Has sp2 hybridized carbon stoms

Has free electrons

Is crystalline

Has free atoms

The term 'brass' is very commonly used to designate any alloy primarily of.

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Copper and zinc

Aluminum and iron

Copper and aluminum

Zinc and nickel

The concept is also known as proton donor acceptor system.

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Bronsted Lowery

Lewis

Lux Flood

Usanovich

Form electron deficient compounds

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B

AI

Both B and AI

None of above

Give violet colour to flame

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Gallium

indium

Thallium

Aluminium

Sodium metal cannot be stored under

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Hexane

Benzene

Kerosene

Ethanol

Molecule of oxygen is

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Diamagnetic

Paramagnetic

Both A and B

None of above

AlCl3 fumes in air because of.

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Hydrolysis

Dehydration

Hydration

Oxidation

Which of the following pollutant is generated from combustion of fuel.

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Smoke

SO2

CO2

Metallic oxides

All above

Relative order of acidity of oxy acid

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HCIO > HCIO2 > HCIO3 > HCIO4

HCIO4 > HCIO3 >HCIO2 > HCIO

HCIO3 > HCIO2 > HCIO > HCIO4

HCIO2 > HCIO4 > HCIO3 > HCIO

Which of the following techniques are used for minimizing water pollution.

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Stabilization of ecosystem

Recharge of the waste

Waste treatment

All above

The multiplicity of the electronic state is equal to.

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S + 1

2S + 1

2S - 2

2S + 2

Which of the following should have the largest dipole moment.

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Carbon tetrachloride

Cis-stibeue

Trans-atibeue

Cis-dichlorocthylene

Stablization of particles and their reactivity is affected by.

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Surface properties

Bulk properties

Regardless to the surface properties

No of particles

If the absorbed light is green the transmitted light will be

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Purple

Orange

Violet

Black

Which of the following process is not related with cannot cycle.

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Iso thermal expansion

Adiabatic expansion

Isothermal compression

Isobaric compression

Which of the following species has highest bond energy.

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H2

T2

D

Cl

Solution with components which obeys Raoult's over the entire composition range are said to be.

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Real solution

Regular solutions

Dilute solutions

Ideal Solution

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.

Dyes used in photographic plates to make them panchromatic is.

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Cyanine dyes

Azine dyes

Phthalocyanine dyes

Acridine dyes

Which of the following acid radical gives chromyl chorate test.

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F-

I-

Cl-

Br-

Red brass contain about how many percent of zinc.

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20 %

15 %

30 %

25 %

The principal quantum number determines the overall size of the orbital and energy of the electron when it is associated with the orbital.It may have the values.

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n = 1,3,5.........infinity

n= 2,4,6................infinity

n = 1,2,3,4..............infinity

None of the abvoe

Treatment of phenol with cold dilute nitric acid gives.

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Only o-nitro phenol

Only p-nitro phenol

2,4,6 -Teinitro phenol

Mixture of o-and p-nitro phenol

The unit of sound pressure level is

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Pascal

Decibel

Newton

Ampere

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