Question # 1

Who discovered the proton?

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Goldstein

J.J Thomson

Neil Bohr

Ruther Ford

A bond formed between two non-metals is expected to be:

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covalent

ionic

coordinate covalent

metallic

It is a good reducing agent

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Fe

H

C

O

Which of the following can accommodate 18 electrons?

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K

L

M

N

Atoms are arranged in ________________ structure in Bucky balls.

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Hollow

Cage

A & B

Nil

The symbol of barium is:

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Ba

Bi

Br

B

Smoke in air is the example of solution.

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Gas in Gas

Gas in liquid

liquid in Gas

Solid in Gas

___________ is a pure substance that can be broken down.

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Matter

Element

Mass

Mixture

The atomic radil of the elements in periodic table:

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increase form left to right in period

increase form top to bottom

do not change form left to right in period

decrease form top to bottom in a group

Hydrogen has ________________ isotopes.

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1

2

3

4

Na__ Na++ e , what type of ionit is :

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Positive

Negative

Neutral

Charged

The example of solution of a solid solute in a solid solvent is

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Brass

Fog

Cheese

Air

Which molecule has single covalent bond?

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O₂

N₂

CI₂

CO₂

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