Question # 1

When gaseous chemicals are transported y road or by rail they are classified as follows:
flammable non-flammable poisonous
which gas is poisonous:

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butane

non-flammable

hydrogen

sulphur dioxide

How many esters are possible for C2H8O2

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3

2

4

5

London forces are more affective at:

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high temperature

low temperature

low pressure

high pressure

When HCI gas is passed through saturated solution of rock salt, the solubility of NaCl

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Increases

May increase or decrease

Decreases

None of these

Which one of the following statements about positive ions is incorrect?

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they are also known as cations

they are formed when electrons are removed from atoms

they are larger than the atom from which hay were formed

they are smaller than the atom from which they were formed

Storage form of iron

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Transferrin

Ferritin

Myosin

Actin

Equal volume of all gases at same temperature and pressure contain number of molecules

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different

multiples

equal

in fractions

Dipole-induced dipole forces are also called

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dipole-dipole forces

ion-dipole forces

Debye forces

London-dispersion forces

Alkanes do not show geometrical isomerism due to

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Hyperconjugation

Resonance

Rotation around single hond

Restricted rotation around doubled bond

Liquids are less common than:

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Solids.

Plasmas.

Gases.

All of above.

CH3CH2CH2OH--------A---------B Here B is

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Propyne

Propanal

Propene

Propane

Fungicides are the pesticides which:

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Control the growth of fungus

Kill insects

Kills plants

Kills herbs

Alcohols of low molecular weight are

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Soluble in water

Soluble in water on heating

Insoluble in water

Insoluble in all solvents

A smuggler could not carry gold by chemically depositing iron on the gold surface since

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Gold is denser

Iron rusts

Gold has higher reduction potential then iron

Gold has lower reduction potential then iron

Selection of filter paper depends upon sizes of particles to be:

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Tested

^Filtered

Checked

All of above

Industrial effuents have toxic synthetic organic compounds as well as heavy metals like

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Pb

Cr

Hg

All of these

Which compound shows hydrogen bonding

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C₂H₆

C₂H₅CI

CH₃-O-CH₃

C₂H₅OH

Francium is an element at the bottom of Group I in the Periodic Table. Which one of the following predication is likely to be correct?

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It will react with water to liberate oxygen

Its hydroxide will be a strong alkali in water

Its carbonate will decompose on heating to give carbon dioxide

Its nitrate on heating will give nitrogen dioxide and oxygen

The radiations with wavelength shorter than violet light are called

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Ultraviolet

Infrared

Microwave

Radio frequency

Which orbital is in the process of completion in case of transition elements

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p-orbital

f-orbital

d-orbital

s-orbital

Terylene is madeby polymerization of terephthalic acid with

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Ethylene glycol

Phenol

Ethanol

Catechol

Alcohols are derivatives of:

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Alkanes

Alkens

Alkynes

Benzene

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