Question # 1

Pro stand for

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Valine

Alamine

Glycine

Proline

Value of rate constant k is specific for a reaction, and varies from reaction to reaction. The value of k of a reaction changes with

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Time

Temperature

Concentration of reactants

Order of reaction

IIB elements (Zn, Cd, Hg) and III B elements (Sc, Y and La) are

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Non typical transition element

Typical transition element

Normal elements

Inner transition element

Which is the most volatile compound

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Hl

HCl

HBr

HF

Which of the following is not a sub-atomic particle

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Electron

Proton

Neutron

Deuteron

Silver oxide battery has a voltage of

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2.0 V

1.5 V

2.5 V

1.0 V

CsF is an ionic compound because:

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High I.P of Cs and high E.A of F.

High I.P of Cs and low E.A of F.

Low I.P of Cs and high E.A of F.

Low I.P of Cs and low E.A of F.

If the radius of first Bohr orbit be a_o, then the radius of third Bohr orbit would be

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3 x a_o

6 x a_o

9 x a_o

1/2 x a_o

The normal amount of overhead ozone is about

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250 Du

300 DU

350 DU

400 DU

Simple sugars are :

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Monosaccharides

Disaccharides

Oligo saccharides

Trisaccharides

Nitroalkane are used in

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Fuel

Solvents

Organic synthesis

All of them

In a group of periodic table, atomic radii is:

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Remains some.

Increases.

First decreases then increases.

Decreases.

Which is not a fossil fuel

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Petroleum

Coal

Natural gas

None of them

Vinyl acetylene combines with HCl to form:

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Polyacetylene

Benzene

Chloroprene

Divinyl acetylene

The relative lowering of vapour pressure is equal to the mole fraction of the solute, This law is called

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Henry's law

Raoult's law

Ostwald's law

Arrhenius law

Which of the following statements about acetic, anhydride is not correct

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It is immiscible with water but is hydrolysed to give acetic acid

It is prepared by the action of actyl chloride on the sodium salt of acetic acid

it reacts with ammonia to give acetamide

it is a strong acid

Caroxyl group has functional in it.

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one

two

three

four

Which of the following is a molecular diseases?

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Allergy

Cancer

German measles

Sickle cell anemia

Balmer's series is in ______ region

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Visible

U V

I. R.

None

Outer shells of two elements X and Y have two and six electrons respectively. If they combine, the expected formula of compound will be

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XY

X₂Y

X₂Y₃

XY₂

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The value of K_pfalls with a rise in temperature

The value of K_pfalls with increasing pressure

Adding V₂O₅catalyst increase the equilibrium yield of sulphur trioxide equilibrium yield of sulphur trioxide

The value of K_pis equal to K_c

Alcohals can be distinguished using test:

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Lucas

Tollen's

Koib's

William's

The value of R(General Gas Constant) is

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8.3134 JK^-1mole^-1

1.987 Cal K^-1Mole^-1

Both a and b

1.987 JK^-1mole^-1

The molarity of toluene solution in benzene is 0.22 if 5 grams of toluene dissolved, then mass of benzene is grams is

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267

260

240

247

"Each different compound should have a different name" was published by IUPAC system of nomenclature in

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1892

1830

1947

1979

which enzyme is not involved in the fermentation of starch ?

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Diastase

Zymase

Urease

Invertase

Chief ore of aluminium is:

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Na₃AIF₆

Al₂O₃.2H₂O

Al₂O₃

Al₂O₃ .H₂O

The total number of orbitals possible for the quantum number n is

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n

n²

2n

2n²

The relative abundance of the ions with a definite m/e value is measured by

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High pressure of vapours

Strength of electric current measured

Quantity of fast moving electrons

Electron gas

The reference calomel electrode is made from which of the following?

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ZnCl₂

CuSO₄

Hg₂Cl₂

HgCl₂

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