Question # 1

A yellow solid element exists in allotropic forms whic is also present in fossil fuel. Indicate the name

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Iodine

Carbon

Sulphur

Aluminium

Hydrogen bound ing is always found in

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Non-polar molecules

Homoatomic molecules

Polar Molecules

All of the above

Which one is not an Arrhenius base.

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KOH

NaOH

NH3

Ca(OH)2

All the noble gases have their valence electrons.

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Incomplete

Partialy filled

Completely filled

None of the above

Example of heterogeneious mixture is

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Soil

Gasoline

AIR

Ice Cream

Which one of the followign halogns has highest electronegativity

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Iodine

Fluorine

Chlorine

Bromine

During the glycolysis net ATP produced are.

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2

4

6

8

The formaton ionic bond between two ions is due to.

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Hydrogen bonding

Metalic force

Electrostatic forces

All of the above

Which element has the highest melting point.

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K

Cs

Na

Rb

The study of theinteraction between drugs and biological targets, as wellas the development of new medicinal agents.

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Inorganic Chemistry

Organic chemistry

Medicinal Chemistry

Environmental chemistry

A substance formed when two or more different elements combine chemically.

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Compund

Solution

Element

Atom

Whcih one of the following in as electron deficient molecule.

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NH3

O2

BF3

N2

What mass of 95% CaCO3 will be requred to neutralize 50 cm 3 of 0.5 M HCl solution.

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9.5 g

1.45 g

1.32 g

1.25 g

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