Question # 1

Which of the following oxides is amphoteric..

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CaO

BaO

BeO

MgO

Strong field ligands such as CN

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Usually produce high spin complexes and small crystal field splitting

Usually produce low spin complexes and small crystal field splitting

Usually produce low spin complexes and high crystal field splitting

Cannot form low spin complexes

Which name is associated with the rules which help in predicting the portability of anion.

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Soddy

Slater

Fajan

Linus pauling

The electromagevitiy of the following elements increase in the order

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F > Cl > O > S

S > Cl > O > F

F > O > N > C

C > O > N > F

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

Helium is used in weather balloons and airships instead of H2 becuse it is.

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Lighter than hydrogen

Incombustible

More abundant than hydrogen

Radiactive

Which one of the following oxides is basic.

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MnO

Mn2O3

MnO2

Mn2O7

The order in O2+ is

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1.0

1.5

2.0

2.5

Which of the following contains both covalent and ionic bond.

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CCl4

NH4Cl

CaCl2

H2O

Co ordinate compounds are

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Polar

Non polar

Dem polar

None of above

Which of the following ahs non zero dipole moment.

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NH3

SF6

BF3

CO2

An element having low IE and low EA is likely to belong to.

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Group IA

Group IB

Group VII A

Group VIII

Radon is obtained only in the radioactive decay of

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Radium

Thorium

Actinium

Any of above

The structure of SO2 is

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Linear

Angular

V-shaped

Planner

Main constituent of all inorganic matter

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Carbon

Silicon

Tin

Lead

Strongest inter molecular hydrogen bond is formed in

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H2O

NH3

HF

H2S

Bromine is used as

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Fungicides

Herbicides

Germicides

Insecticides

Which of the following parameter is not involved in calculations based on Born Haber Cycle.

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Ionization enthalpy

Electron gain enthalpy

Electronegativity

Bond dissociation energy

The element with maximum first ionization energy is.

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B

N

O

C

Reacts violently with water

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AlH3

AlCl3

Lia IH4

Al2Cl6

When two H atoms approach each other then forces operates.

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Attractive forces

Repulaive forces

Attractive and repulsive

None of above

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