Question # 1

Suspension's solute particles ____________ at bottom.

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Dissolves

Settle

Both

Nil

Which of the following can accommodate 18 electrons?

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K

L

M

N

The symbol of barium is:

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Ba

Bi

Br

B

The elements of group 3 to 12 are called

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Normal elements

Transition elements

Radioactive elements

None of these

Addition of OXYGEN is called.

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Reduction

Conduction

Oxidation

Nil

The atomic number of potassium is:

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11

15

18

19

The other name of modern periodic table is ________________ of periodic table.

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Long form

Simplified

Simplest

Nil

Number of protons+ neutrons is :

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Atomic mass

Mass numbers

Both

Nil

Which one is not a tetraatomic molecular?

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H2O

H2O2

SO3

BCL3

____________ do not conduct electricity.

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Electrolyte

Non-electrolyte

Both

Nil

P1V1 = P2V2 is mathematical form of ____________ law.

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Bohr's

Charles

Boyle's

Nil

..................... is property of metals.

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Gases

Lustrous

Solids

Nil

Br2 + H2S __ 2HBr + S, which one is oxidizing agent:

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H2S

Br2

S

2HBr

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9th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers

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