Question # 1

Along the period which one of the following decrease:

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Atomic radius

ionization energy

electron affinity

electronegative

The empirical formula of glucose is

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CHO

CH2O

C2HO

CHO2

Tyndall effect is shown by:

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sugar solution

paints

jelly

chalk solution

________________ cannot be seen by naked eye.

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Matter

Molecules

Solid

Liquids

The formula of rust is:

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Fe₂O₃,nH₂o

Fe₂O₃

Fe(OH)₃-nH₂O

Fe(OH)₃

Gases have ____________ shape.

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Fixed

Not Fixed

Nil

Both a & b

An ________________ scientist arranged the elements in order in periodic table.

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English

Italian

African

Indian

____________ Is drawn in wires.

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Gold

Silver

Helium

Nil

Which gas will diffuse faster than others?

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Hydrogen

Oxygen

Chlorine

Nitrogen

Canal rays are actually

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Electrons

Protons

Neutrons

X-rays

Which has metallic bond?

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H

Na

HCI

P

Modern periodic table can be classified into ________________.

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Elements

s, p, d, f blocks

Periods

ROWS

_________ which occupies space and have mass.

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Matter

Atom

Molecule

All of above

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