Question # 1

Which of the following is correct for epoxy resin

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Coating material for thermal power stations

It give chemical resistance

Epichlorohydrin is monomer

All of these

Catalyst used for ammonia synthesis is

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Cu

Co

Zn

Fe

Condensation occurs between amino acids with the elimination of

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H₂O

H₂

O₂

NH₃

One gram of carbohydrate yields energy

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10 kcal

100 kcal

4 kcal

9 kcal

Which one of the following groups is indicated when HCI is formed by reaction of ethanol with phosphorous pentachloride?

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Amino group

Halide group

Hydroxyl group

Hydride group

Rancidification of facts and oils is due to:

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oxidation reaction

hydrolysis reaction

both a and b

hydrogenation reaction

The decomposition of N2O4 to NO2 is carried out at 280°C in chloroform. When quilibrium is reached. 0.2 moles of N2O4 and 0.02 mole of NO2 are present in 1:1 ratio The equilibrium constant for the reaction N2O4------> 2NO2 is

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0.01

0.001

0.02

0.002

London dispersion forces are also called

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Ion-dipole forces

Dipole-induced dipole forces

Dipole-dipole forces

Instantaneous dipole induced dipole forces

What is the reason of ionic solids for not conducting electricity?

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free electrons are less

ions don't have translatory mention.

ions don't have translatory mention

the coordination number of the ion is very high.

An ideal gas obeying kinetic gas equation can be liquefied if

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Its temperature is more than critical temperature

Its pressure is more than critical pressure

Its pressure is more than critical pressure but temperature is less than critical temperature

It cannot be liquefied at any value of P and T

Neutralization of acid-base is

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Spontaneous

Exothermic

Non spontaneous

Both "a" and "c

The electron in an atom

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moves randomly around the nucleus

has fixed space around the nucleus

is stationary in various energy levels

moves around its nucleus in definite energy levels

In sp²hybridization bond angle is _____

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120°

180°

109.5°

None

The specific conductance of a 0.1 N KCl solution at 23°C is 0.012 ohm^-1cm^-1. The resistance of cell containing the solution at the same temperature was found to be 55 ohm. The cell constant will be

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0.142 cm^-1

0.66 cm^-1

0.916 cm^-1

1.12 cm^-1

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Orbitals having same energy are called

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Hybrid orbitals

Valence orbitals

Degenerate orbitals

D-orbitals

A complete chemical Characterization of a compound must include:

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Qualitative analysis

Chemical analysis

Quantitative analysis

None of above

A cell in which spontaneous redox reaction generates an electric current is called

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Electrolytic cell

Electrochemical cell

Voltaic or Galvanic cell

Biological cell

Sodium metal is obtained by the electrolysis of fused NaCl in cell is called

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Nelson's cell

Down's cell

Daniell cell

Voltaic cell

The largest item which is recycled is

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Newspaper

Plastic

Aluminium

Oil

Bakelite is a product formed form

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Reaction of formaldehyde with phenol

Reaction of polyethylene with phenol

Reaction of polypropylene with acid

It is a natural product

Acetic Acid reacts with PCl₅ giving:

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Acetamid

Acetyl chloride

Alcohol

ether

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