Question # 1

All the member of group III A are metals except.

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B

Ai

Ga

In

The IUPAC name of C2H3, CO , OC OC2H5 in

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Prepanoic anhydride

Ethanoic anhydride

Diketoethoxy ether

None of the above

in the process of production of soap the soap can be salted out by adding

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Concentrated sulphuric acid

Concentrated potassium hydroxide solution

Concentrated sodium chloride solution

None of above

The purification of Bauxite can be carried out.

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Baeyer's process

Hall's process

Serpek's process

Any of above

Number of unpaired electrons in Cu2+ ions are.

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1

2

3

4

Which show maximum number of oxidation states in 3d series.

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Mn

Ni

Co

Zn

carbon monoxide is harmful to human beings as it.

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Is carcinogenic

Is antagonistic to CO2

Has higher affinity for haemoglobin as compared to oxygen

Is destructive to O3

Which of the following is capable of forming zwitter ion.

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Amino acids

Halo acids

Hydroxy acids

All of these

Cyclic polymers of ethylene glycol formed by condensation are called.

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Crown ether

Brown ether

Cryptates

Both A and C

Which of the following combination is used to make buffer.

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NaOH and HCl

KOH and H2SO4

CH3COOH and CH3COONa

CH3COOH and NH4OH

Ionic reactions mainly take place in.

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Aqueous solutions and organic solvents of high polarity

Non aqueous solvents of low polarity

Gaseous state

Solid state

The number 7.65 is rounded to.

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7.6

7.7

7.5

7.8

Hydrogen at the moment of its generation is generally called.

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Protium

Nascent hydrogen

Atomic hydorgen

Heavy hydrogen

"Acids are substance whose aqueous solutions turned blue litmus red and tasted sour" stated by

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Davy

Liebig

Boyle

Rouelle

Nano particles may interact with the support to be.

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Partially oxidized

Partically reduced

Both a and b

None

Which of the following technique is used to separate substance based on their charge to mass ratio.

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HPLC

HPTLC

GC

Electrophoresis

Which of the following is the strongest oxidant.

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F2

Cl2

br2

I2

The shape of SO₄^2-ion is.

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Tetrahedral

Trigonal planar

Square planar

Octahedral

Coordination compound show

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Structural isomerism

Stereo isomerism

Both A and B

None of above

The energy gap between tag and eg sets in denoted by

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A-

10 Dq

Both A and B

None of above

The element Uuu has atomic numebr

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102

111

101

110

According to the Debye-Huckel theory of strong electrolytes, and ion moving in an atmosphere of oppositely charged ions experience a drag This effect is known as

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Aaymmetric effect

Electrophoretic effect

Inter ionic effect

Concentration effect

In the Aluminothermite process, aluminium acts as.

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An oxidizing agent

A reducing agent

A flux

A Solder

In the kinetic study of a reaction A _____________ products.

A straight line was observed when a graph between time and 1/C2 was plotted. the reaction is.

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Second order

First order

Third order

Zero order

Equivalent conductance is expressed in the units.

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S cm-1 eq -1

S cm eq-1

S cm2 eq-1

S cm2 eq

Refining is

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Extracting petroleum gas

Separation of various fraction

Heating of coal

All of above

All halogens exist as covalent molecules.

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Monoatomic

Daitomic

Triatonic

Tetra atomic

______ is used for Annealing

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Klin

Batch

Converter

Oven

Which of the following statements is not correct regarding electromagnetic spectra?

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The frequency of microwave is less than uv

The velocity of X-rays is more than uv

Cosmic rays have shorter wave length than radio waves.

The frequency of uv is greater than visible rays.

The Schrodinger equation when solved for any system gives.

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The mean force path

The Polarizability

The energy function

The wave function

Which of the following statements is worng.

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Covalent compounds are generally soluble is polar solvents

Covalent compounds have low melting and boiling point.

Ionic solids do not conduct electricity is solid state

Ionic compounds conduct electricity in the fused state.

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