Question # 1

lonic solids are characterized by which one of the following properties

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moderately low pressure

high vapour pressure

good conductivity in solid state

solubility in polar solvents

Water is purified by the process:

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Aeration

Coagulation

Chlorination

All of these

Slight oxidation of primary alcohol eives

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Ketone

Aldehyde

-Organic acid

An ester

What will be the shape of a molecule which containstwo sigma bond pairs and one lone pair?

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Linear

V shape

Tetragonal

Triangular

Polyesters resins have special use in:

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Clothing

Paints

Emulsion

Floor covering

Which is not a calcareous material?

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lime

clay

marble

marine shell

In which of the following types of reactions are the carbonyl compounds and alkene are similar in behaviour

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Nucleophilic addition

Electrophilic addition

Nucleophilic suhstitution

Catalytic hydrogenation

CH₃CH₂COOH is also named as:

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Propionic acid

Propanoic acid

Acetic acid

Both (a) & (b)

Dipole-dipole interaction are present in the

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atoms of the He gas

molecules of CCl4

molecules of solid iodine

molecules of :NH3

When we dissolve 15.8 g of KMnO4 in 1000g of H20. The solution is

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, 0.1 M

0.1 M

0.2 M

Which of the following is derived lipid

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Sterols

Vit D

Terpenes

All

Termochemistry is the study of chemical reaction accompanying

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Heat change

Rate change

Mass change

Volume change

An element in +3 oxidation state has the electronic configuration (Ar) 3d³. Its atomic number is

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24

23

22

21

Ethanol can be converted into ethanoic acid by

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Hydrogenation

Hydration

Oxidation

Fermentation

CuSO₄. 5H₂O is used to prepare

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Transition complex

Fehling's 'A' sol

Fehling's 'B' sol

Fehling's sol

In the atmosphere, O₂is about

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10%

15%

21%

25%

Stainless steel contains Cr upto

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12%

18%

10%

5%

The size of electronic shell is described by

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Azimuthal Q. no

Magnetic Q.No

Spin Q. No

Principle Q. No

Which one of the following is not an example of chain growth polymer?

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Neoprene

Bunna-S

PMMA

Glyptal

The covalent bonds are

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Unidirectional

Bi-directional

Non-directional

Multi-directional

The development of industries was a direct result of which major factor

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Population

Living standards

Depletion of resources

All of these

The standard EMF of Daniel cell is 1.10 volt. The maximum electrical work obtained from the Daniel cell is

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212.3 kJ

175.4 kJ

106.15 kJ

53.07 kJ

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