Question # 1

Which of the following is the most abundant alkaline earth metal.

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Be

Mg

Ca

Sr

An element with high electronegativity has

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High IE and high EA

High IE and low EA

Low IE and High EA

Low IE and low EA

Which of the following represent the fuming sulphuric acid

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H2S2O4

H2S2O3

H2S2O6

H2S2O7

In their ionic compounds halogens exhinit the oxidation states of.

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-1

-2

-3

-4

In the Aluminothermite process, aluminium acts as.

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An oxidizing agent

A reducing agent

A flux

A Solder

The principal ores of copper are

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Copper sulphides

Copper oxides

Both sulphides and oxides

Copper carbonate

The correct order of second ionization potential of carbon nitrogen, oxygen and fluorine is.

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C > N > O > F

O > F > N > C

O > N > F > C

F > O > N > C

Which of the following has the maximum tendency to form complexes.

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K

Na

Rb

Li

Shows a regular increase on moving down the group form carbon to lead

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Atomic volume

Atomic radius

Density

All above

Artificial nitrogen fixation may occur by the formation of.

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Nitric acid

Ammonia

Nitrides

Any of above

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

Which one of the following statements if false with respect to CFT.

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In an octahederal crystal field. the d electron on a metal ion occupy the ex of orbitals before they occupy the t98 not of orbitals.

Diamagnetic metal ions cannot have an odd number of electrons

Low spin complexes can be paramagnetic

Low spin complexes contain strong field ligands.

Example of inter molecular H-bonding is

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NH3 and H2O

HF

CH3COOH

All of abvoe

SO2 acts as

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Lewis base

Lewis acid

Botha A and B

None of above

Which one has a co ordinate bond.

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Al2Cl6

BF3

NaCl

O2

Boron and aluminum halides are electron deficient compounds in this respect. they act as.

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Lewis acid

Lewis base

Oxidizing agent

Reducing agent

Hypo is used in photography to.

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Reduce AgBr to metallic silver

Remove silver a silver salt

Remove undecomposed silver bromide as soluble complex

Remove reduced silver

The percentage of s-character in the hybrid orbitals sp, sp2 and sp3 follows the pattern.

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sp3 > sp2 > sp

sp > sp2 > sp3

sp = sp2 >sp3

sp = sp2 =sp3

Alumina is not used as

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Refractory material

A medium in chromatography

An abrasive

A White pigment

Which of the following is not an alum.

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KAI (SO4)3 12 H2O

NaAI (SO4)2 12 H2O

NH4Fe (SO4)2 12H2O

FeAl (SO4)2 . 12 H2O

The common oxidation state of elements of group V A is.

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-3

+3

+5

Any above

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