Question # 1

Which one of the following does not affect the boiling point?

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intermolecular forces

external pressure

nature of liquid

initial temperature of liquid

Which one is an example of colloids?

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NaCl + Solution

Milk

Fog

Air

The bound between ionic compound is ............ .

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Covalent

Co-ordinate

Ionic

Nil

The escape of gaseous molecules one by one is called ____________.

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Diffusion

Effusion

A & b

Nil

The base of modern periodic table is

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Atomic number (Z)

Mass number (A)

Avogadro's Number

Quantum Number

Transition elements are:

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all gases

all metals

all non-metals

all metalloids

The fundamental unit of elements is ___________

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Molecule

Atom

Matter

Mixture

Cu + 2AgNO3 -------> Cu(NO3) +2Ag. In this reaction reducing agent is:

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Cu

AgNO3

Cu(NO3)2

Ag

The oxidation number of chromium in K₂Cr₂O₇ is:

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+2

+6

+7

+14

Which pair of compounds is soluble?

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Ether and water

KCI and water

Benzene and water

Petrol and water

_________ shells of noble gases is complete.

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Outer most

2

1

Nil

Hydrogen is a ____________

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Metal

Non metal

Metalloids

Nil

Air is an example of:

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Gas in gas

Solid in gas

Liquid in gas

Gas in ;iquid

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