Question # 1

The value of van der Waal s constant a for gases CO₂, N₂, and SO₂, are 3.59 ,1.39, 1.36, and 6.17 atm dm⁶ mol^-2respectively the gas which can be most easily liquefied is

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CO₂

O₂

N₂

SO₂

SHE acts as anode when connected with Cu electrode but act as cathode with Zn electrode

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Zn has less reduction potential than hydrogen and Cu

Zn has high reductionl potential than hydrogen

and Cu

Zn is below electrochemical series than hydrogen and Cu

Zn has least tendency to lose electron

Which of the following is not a postulate of the kinetic theory of gases?

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when gas particles collide, their total kinetic energy increases

gases consist of molecules in a constant state of random motion

when gas particles collide their total kinetic energy does not change at all

The gas particles travel in straight lines unit they collide with one another or with the walls of the container

In cyclic structure of glucose when the position of atoms on Carbon 1 is altered one isomer changes to other. These isomers of glucose are called

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Annomers

Position isomers

Meta-mess

Cis-trans isomers

The red brown ppt. of Fehling solution and benedict solution tests are of

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Ag

Cu2O

CuO

AgBr

Carboxylic acid is given name by replacing "a" of alkane by:

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"oic" acid

"one"

"al"

"ol"

Which of the following is the correct equation to calculate relative molecular mass of a gas

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M=mPRTV

M=mPR/VT

M=PV/mRT

M=mRT/PV

How should the conditions be changed to prevent the volume of a given gas from expanding when its mass in increased

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temperature is lowered and pressure is increased

temperature is increased and pressured is lowered

temperature and pressure both are lowered

temperature and pressure both are increased

Liquefaction of gas can only be carried out if the:

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without caring for the value critical volume at critical stage

the temperature is more than critical and pressure is 1000 atm

the temperature is below the critical and pressure is very high

temperature is above the critical temperature and pressure can have any value

Absolute temperature of a gas is proportional to:

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Rotational Kinetic energy

Translational Kinetic energy

Vibrational Kinetic energy

Potential energy

In diamond, which hybridization is there?

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sp2

dsp2

sp3

sp

Which of the following statements is true about Galvanic cell

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Anode is negatively charged

Reduction occurs at anode

Cathode is positively charge

Reduction occurs at cathode

Monosaccharides belong to the group

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Lipids

Fats

Proteins

Carbohydrates

During redox reaction an oxidizing agent

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Gains electrons

Is oxidized

Loses electrons

Hydrolysed

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Osmotic pressure of a solution increases by

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Decreasing the temperature

Increasing the volume

Increasing the number of molecules of the solute

None of the above

During electrolysis, the reaction that takes place at cathode is :

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Reduction

Both (a) and (c)

Oxidation

No reaction occurs

1-butene an 2-butene are an example of

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Chian isomerism

Positional isomerism

Metamerism

Functional group isomerism

An azeotropic mixture of two liquids boils at a lower temperature than either of them when :

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It is saturated.

It shows positive deviation from Raoult's law.

It show negative deviation from Raoult's law.

It is metastable.

10g Of NaOH Has Been Dissolved Perdm³of solution. The morality of solution is :

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0.025 M

1.5 M

0.1 M

.25 M

The quantum number which describes the shape of the orbital is

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Principle quantum number

Spin quantum number

Azimathal quantum number

Magnetic quantum number

Optical rotation method is sued when

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Reaction involve ions

Change of refractive indices

Reactions involving change of optical activity

None of the above

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