Question # 1

Which process of adsorption of hydrogen on palladium is known as.

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Syneresis

Occlusion

Diffusion

Erosion

Molten iron withdrawn from the blast furnace is called.

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Wrought iron

Pig iron

Bessemer iron

Stainless steel

Phosphorus has the oxidation state of +3 in

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Orthophosphoric acid

Hypophosphoric acid

Metaphosphoric acid

Orthophosphorus acid

A combination of atomic orbitals produces a large number of closely special energy states brown as.

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Packet of energy

Band of energy

Botha a and b

None of the above

Ingold's isoprence rule states that in terpenoids isopren units are joined.

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Head to tail

Head to head

Tail to tail

In a random order

Of the molecules, SF4 Xe F4 and CF4 which have square planar geometry.

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SF4 , Xe f4 and CF4

SF4 only

CF4 only

XeF4 only

Sodium react more vigorously than lithium because.

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It is a metal

It has higher atomic mass

It is more electronegative

It is more electropositive

Which of the following is capable of shown g optical isomersm.

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CH3COCOOH

CH3CHOHCOOH

Botha a and b

All of these

Which are not considered member of d-block elements.

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Zn

Cd

Hg

All above

In the presence of dilute alkali monosaccharides undergo reversible isomerisation . The reaction known as.

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Kiliani reaction

Weermann rearrrangement

Lobry do Bruyn Van Ekenstein rearrangement

Mutarotation

Which of the following is not biological characteristics of water.

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COD

Animals

Plants

Viruses

Which halide of cesium will be highly ionic in nature.

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K+

Ag+

Rb+

Ca+

Which of the following salt is not used in salt bridge to minimize liquids junction potential.

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KCl

NH4Cl

KNO3

CaCl2

The process of passing of a precipitate into colloidal solution, on adding an electrolyte is called.

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Dialysis

Peptization

Electrophoresis

Electromsmosis

Which of the following steps is involved in quantitative analysis.

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Sampling

Conversion of the desired constituent into a suitable form per analysis.

Measurement of some physical or chemicals property, on which the determination is based.

All above steps

The colour of Ni2+ ion is.

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Blue

Green

deep green

Orange

The relative populations of gourd state and excited state populations at a given flame temperature can be estimated using.

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Boltzmann distribution law

Maxwell law

Lambertie law

Beer's law

A property which gradually increases on moving down group in the periodic table is

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Ionization enthalpy

Elemtronegativity

Electron affinity

atomic size

In manufacturing of cement crystallization of amorphous dehydration products of clay

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500 ^oC to 800 ^oC

900 ^oC to 1200^oC

1250 ^oC ti 1400 ^oC

1000 to 1100 ^oC

Volta metric technique using a dropping mercury electrode is called.

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Amperometry

Coulometry

Polarography

Potentiometry

What % if nickel is present in the major ore Pentlandite.

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22%

18%

14%

10%

The special chrome steels of the stainless variety contain how many percent of chromium.

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4 to 8

11 to 17

9 tp 10

12 to 15

Fluorine form Fluorides reacting with

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Metals

Non metals

Metalloide

Any of above

Oil of turpentine contains.

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a-pinene

p- pinene

Both A and B

None of these

Dry distillation of amino acids with barium hydroxide yields.

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Acids

Amines

Alcohols

Hydroxy acids

The Lewis formula of SOCl2 the total number of bond pairs and lone pairs of electrons around sulphur are.

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2,1

2 ,2

3 ,1

3 ,0

The co ordination number of atoms in a hexagonal closed packed structure is

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2

6

12

4

Major ingredients of traditional ceramics

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Silica

Clay

Feldspar

All

Compounds HCN and HNC are.

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Tautomers

Metamers

Functional isomers

Conformers

The link between classical thermodynamics and quantum mechanics is prevented by

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Statiatical mechanics

Boltzmann law

Wave mechanics

Matrix mechanics

The common ligands can be arranged in order of their increasing splitting power to cause d-orbitals splitting. This series is called as.

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Electro-chemical

Spectro -chemical

Physico-chemical

Spectro -electrical

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