Question # 1

How many sigma and pi bonds are there in a CO2 molecule.

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2 sigma

2 sigma and 4 pi

2 sigma and 2 pi

4 sigma and no pi

Main constituent of all inorganic matter

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Carbon

Silicon

Tin

Lead

Strength of H bond in inter mediate between

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Van der Waals forces and covalent bond

Ionic and covalent bond

Ionic and metallic bond

Metallic and covalent

Glycerol on dehyeration gives

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Allyl alcohol

Aerolein

CHOH = C= CHOH

-CHO -CHOH -CH2OH

SO2 is generated from which of the following industry.

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Drying and packing

Paper

Pulp

paper and pulp

What ASTM test for tension is designated for plastics.

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A 370

D 638

E 292

None of these

Which of the following substance is not weak electrolyte.

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CH3COOH

NH4OH

Oxalic Acid

NaCl

Strongest inter molecular hydrogen bond is formed in

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H2O

NH3

HF

H2S

It is possible to distinguish between optical isomers.

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Using chemical tests

By mass spectrometry

By IR spectroscopy

By polarimetry

Steel is an alloy of iron and carbon with limits on the amount of carbon to less than _______ percent.

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2

3

1

4

Which of the following is not strong electrolytes.

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HCl

H2SO4

HNO3

CH3COOH

Which of the following ions does not have the electronic configuration same as that of neon.

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F-

O2-

Na+

Ca2+

A system which can exchange energy as well as natter with its surrounding is said to be a/an

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Closed system

Inert system

Open system

All of above

Which of the following statement is not related to collision theory.

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Molecules must collide with each other to do a chemical reaction

Molecules must posses a minimum amount of energy

Molecules must have proper orientation

Collision theory is applicable to liquid only.

The vapours attacks the eyes and mucous membrane of nose and throat

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F

Cl

I

Br

The halide which is inert to water is

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PCl5

SiCl4

BCl3

SF3

Which of the following compounds cannot be a monomer.

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CH3-CHOOH -CH2OH

NH2 -CH2-NH2

CH3-CH2-NH3

NH2-CH2-CH-CH2 -NH2

CH3

Which of the following represent the fuming sulphuric acid

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H2S2O4

H2S2O3

H2S2O6

H2S2O7

The increasing order of energies of various sub shells is

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1s < 2s<3s<2p<3p<4s<3d

1s <2s<2p<3s<3p<4s<3d

1s>2s>2p>3s>3p>4s>3d

1s>2s>2p>3p>3d>4s

Which of the following test is not shown by proteins.

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Xanthoproten test

Ninhydrin test

Hopkin cole test

Muliken Barker test

The magnitude of electron affinity depends on.

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Atomic size

Nuclear charge

Electronic configuration

All of the above

In each period, the most electropositive element belongs to group.

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18

17

1

2

The dye which is a constituent of Skiffs reagent used for detection formaldehyde group is.

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Gentain violet

Megneta

Phenolphthalein

Rosolic acid

Heisenberg's uncertainty principle precludes the exact simultaneous measurement of.

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Velocity and energy

Velocity and time

Charge density and probability

Position and momentum

Which of the following technique is used for separation of volatile components.

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GC

HPLC

FPLC

TLC

Tetra halides do not undergo hydrolysis

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C

Si

Sn

Pb

Which of the following is strongest reducing agent.

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Be

Mg

Ca

Sr

The maximum noise level at which a man can work for 8 hours is.

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80 dB

70 dB

90 dB

60 dB

The IUPAC suffix used for ______ NC group is

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Cyanide

Isocyanides

Carbylamines

Nitrite

The main constituents of ___________ are boron oxide and silica.

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Pyrex glass

Low silica glass

Soda lime glass

Super hard glass

Gravimetric method is based on which of the following property.

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Volume of a liquid

Volume of gas

Mass of substance

Viscosity

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