Question # 1

Which order of vapour pressure in the following liquids is correct

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water > ethanol > acetone > ether

ether > acetone > ethanol > water

ether > ethanol > acetone > water

water > ether > acetone > ethanol

The state of matter which exist only within a relatively narrow range of temperature and pressure

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Solid

Gas

Liquid

Plasma

Which one of the following reaction of carboxylic acid is reversible?

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Esterification

Salt formation

Reaction with PCI5

Reaction with SOCI2

A polymer of PVC having D.P 500 has molar mass:

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6300

63000

3150

31500

Which of the following substance has maximum critical temperature

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H₂O

N₂

SO₂

Ne

which one of the following statements bout negative ions is incorrect?

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they are also know as anions

they are formed when atoms gain electrons

they are large than the atom from which they were formed

they are smaller than the atom from which they were formed

what is the exact value of angle in BF3

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90

104.51

119.5

120°

Variable Oxidation state of is related to transition elements

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empty d-subshells

Completely filled

Partially filled d-subshell

d-d transition

Which of the following are thermoplastic materials?

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PVC

polystyrenes

polyethylene

all these

Which of the following is not the application of plasma

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Fluorescent light bulb

Removal of hazardous chemical

Neon signs

Corrosion effective

Amino acid produce α-hydroxy carboxylic acid when treated with

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KNO₃/HBr

Zn/HCI

NaNO₂/HCI

Pd/BaSO₄

Number of elements present in 5th period is

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8

18

32

24

The Electro-negatively difference for ionic bond must be greater than

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1.6

1.7

1.8

1.0

Neutron was discovered by:

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Chadwick.

Bohr.

Rutherford.

Plank.

The electronic configuration of an atom/ion can be defined by the following

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Aufbau principle

Pauli's exclusion principle

Hund's Rule

All the above

Which of the following is complex?

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CaSO₄. 0.5H₂O

(C₆H₁₀O₅)_n

C₆H₁₂O₆

CH₄

Saponification of ethyl benzoate with caustic soda

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Benzyl alcohol,ethanoic acid

Sodium benzoate, ethanol

Benzoic acid, sodium ethoxide

Phenol, ethanoic acid

Commercial common salt becomes slight damp on storing because

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Common salt is hygroscope

Common salt contains some impurity, which is hygroscopic

Salt in efflorescent

Salt is crystalline

Alkyne is :

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CH_3-CH₃

CH₄

CH₂₌CH₂

C₂H₂

HNO₂acts as an/a

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Acid

Oxidizing agent

Reducing agent

All the three

The actual number of atoms or molecules taking part in rate determining step is

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Rate of reaction

Velocity of reaction

Order of reaction

Molecularly

Which is not a steroid

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Cholesterol

Ergosterol

Phospholipids

None of these

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