Question # 1

[Ti(OH2)6]3+ gives colour

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Green

Red

Purple

Blue

The velocity possessed by maximum fraction of molecules at a given temperature is called.

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Average velocity

Root mean aquare velocity

Most probable velocity

None of the above

The bond angle between hybrid orbitals in methane is

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115.5^o

109.5^o

105,7^o

120^o

The IUPAC suffix used for ______ NC group is

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Cyanide

Isocyanides

Carbylamines

Nitrite

Hydrolith is the common name of

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NaH

CaH2

NaF

CaF2

Which of the following solution has highest normality.

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1 N H2PO4

0.5 N H2SO4

6 g NaOH per 100 cm3

4 g NaOH PER 1000 cm3

The pH Value 4.2 is of

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Vinegar

Lemons

Oranges

Tomatoes

The types of coordinate compounds.

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Labila

Inert

Both A and B

None of above

The multiplicity of the electronic state is equal to.

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S + 1

2S + 1

2S - 2

2S + 2

Which of the following oxide formed in appreciable quantity in the atmosphere.

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NO

NO2

N2O

All above

Example of linear geometry

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XeF2

F2 and HgCl2

CdI2 AND Ag Cl3

All of the above

Conductometry is based on

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Electric current

Electrical potential

Absorbance

Electrical conductance

The penultimate shell of carbon contains electrons.

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s2

s2p6

s2p6d10

s2p6d8

Which one of following is non polar

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CH2Cl2

CCl4

CHCl3

CH3Cl

Mangalium is an alloy of.

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Al + Mg

Mg + Ai + Mn

Mg + Ai + Cu

Mg + Ai + Cu + Mn

Organic substance responsible for the smell of the Flowers etc are grouped together in chemistry as.

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Perfumes

Terphenoids

Flavonoids

Alkaloids

In reverse phase chromatography which of the analyte will be retained more on the stationary phase.

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Semi polar

Non polar

Polar

None of the above

The number 8.47 is rounded to

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8.5

8.4

8.7

8.6

For a given mass of a gas if temperature increase

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Pressure and volume remain Constance

Volume increases provided pressure is kept constant

Pressure decreases provided volume is constant

Both volume and pressure decrease

Metal are

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Hard

Ductile

Malleable

All

The relative error is usually expressed as

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Parts per ten

Parts per one

Parts per hundred

Botha C and D

Which of the following gas form weakly acidic sulphurous acid

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SO2

SO3

NO2

NO

The element Uuu has atomic numebr

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102

111

101

110

Solid sodium chloride does not conduct electricity be cause.

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In solid NaCl, no ions are present

Solid NaCl is covalent in nature

In solid NaCl, there is no mobility of ions

In solid NaCl, there are no electrons.

Bitumen is used in

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Electric generators

Road surfacing

Coal tar

All of above

Which of the following property has a higher value for trans isomer as compared to cis isomer.

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Density

Dipole moment

Melting point

Boiling point

In diborane (B2H6)

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The structure is similar to that of C2H6

All the atoms are in one plane

The born atoms are linked through hydrogen bridges

There is a direct boron boron bond

Which of the following liquids has lowest vapour pressure at 25 ^oC

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Benzene

Chloroform

Ether

H2O

Egyptians were using ________ to prepare make up for eyes.

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Nanoaluminium

Nanocopper

Nanosteel

Nanolead

The layer containing petroleum oil and gas is.

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Above that of water

Below water

Between water and sand

All of above

Commercial or the phosphoric acid is pure.

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37.0%

82.98%

88.25%

90.12%

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