Question # 1

What is the possible number of optical isomers for a compound contained 2 dissimilar asymmetric carbon atoms.

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2

4

6

8

Which of the following statement about molecularity is not correct.

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It cannot be fraction

It can be obtained from balanced equation

It may be or may not be equal to the order of the reaction

it can not be more than 3

Which of the following is capable of forming zwitter ion.

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Amino acids

Halo acids

Hydroxy acids

All of these

The intensity of magnetization produced per unit strength of the applied magnetic field is called magnetic susceptibility., which of the following statements is not related with this phenomenon.

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Confirmation of structure of given compound

Complex storeochemistry

Diamagnetic nature of molecules

Paramagnetic nature of molecules.

Fluorine form Fluorides reacting with

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Metals

Non metals

Metalloide

Any of above

Copper occurs in nature as.

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Native

Combined

Both native and combined

None of the above

The ionization potential of K would be numerically equal to.

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Electron affinity of Ar

Electromagnetically of K

Electron affinity of K+

ionization energy of Ca

For a given mass of a gas, if pressure in reduced to half and temperature in doubled, then volume.

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2V²

4V

8 V

V²

What is the ASTM tension testing designation for standard method for steel products.

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A 370

E 345

E8

E 9

The vapour pressure of a liquid

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Always increase's with temperature

Always decreases with temperature

Is independent of temperature

Increase up to the boiling point

The bromine produced on commercial scale may contain impurities of.

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Water

Chloride

iodine

All above

Non localised bonds are referred as

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Metallic bond

Long range bonds

Ionic bond

Covalent bonds

The maximum degree of freedom for a pure substance under equilibrium constitutions is

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1

2

3

zero

Which of the following is not an alkali metal

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Rb

Sb

Cs

Fr

The rays emitted by the cathode in a gas discharge tube under low pressure and high voltage of electricity are called cathode rays. Which of the following properties are not related to cathode rays.

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These travel in a straight lines.

These are deflected by magnetic and electric field.

Minerals Fluoreace with a characteristic color when placed in a beam of cathode rays.

These are dependent of the material used for the electrode.

Stainless steel contains.

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Fe + Cr+ Ni

Fe + Ni + Cu

Fe + Cr+ Cu

Cu + C + Ni

The separation efficiency of a column can be expressed in terms of number of.

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Solvents used

Theoretical plates

Stationary phases

Mobile phases

Which of the following is always true for the adiabatic expansion of gas.

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Temperature rises

Pressure rises

W=0

Q = 0

Electronegativity of oxygen is.

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2,5

3,5

2,4

2.1

Which one of the following ionsis colourless.

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Cu+

Ni2+

Co2+

Fe3+

Cement containing higher percentage of gypsum than required.

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Sets slowly

Sets repidly

_{Does not set at all}

Has no effect

What cast iron has modular or spheroidal graphite?

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Ductile iron

Gray iron

White iron

Raw iron

According to SHAB, Lewis acid are divided into.

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Two classes

Three classes

Four classes

None of above

The maximum number of electrons in s,p,d and f sub shells are.

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2 in each

2, 6, 10, 18

2,6 ,10,14

5 in each

Which of the following radical is not a member of II group.

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Cu²⁺

Cd²⁺

Ba³⁺

K+

Which of the following bonds between carbon -carbon is teh strongest.

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Sigma bond

Pi bond

Double bond

Triple bond

The digits which are necessary to express the result of a measurement to the precision with which the measurement is made are called.

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Non significant figures

Mathematical figures

Significant figures

Reagent errors

Which of the following statement represent advantages of sanitary Landfill

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Economical method

Low initial investment

Flexible daily capacity

All above

The colour of Ni2+ ion is.

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Blue

Green

deep green

Orange

Opticla tweezers

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Are used to remove facial hair with miniaturized laser beams

use light to manipulate particles as small as single atom

Are a nanotechnology bases tool for stamp collectors

Don't exist

Which of the following is not related to the limitations of Bohr's model.

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It does not applicable to more than one electron system.

It does not explain the extra lines obtained in the H-spectrum

It considers the electron as particle

It considers the electron as a wave.

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