Question # 1

The concept of orbit was used by:

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J.J Thomson

Rutherford

Bohr

Planck

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

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covalent

ionic

coordinate covalent

metallic

the homogeneous mixture of two or more substances is ____________.

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Solution

Stronger

Suspension

None

Which one of the following shell consists of three subshells?

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K- shell

M-Shell

L-shell

M-shell

The 2nd and third periods are called

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short period

Normal period

Long period

Very long period

Gold was used for utensils as early as ____________ BC.

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3400

3500

3600

3700

Ionic compound are ________________ in water.

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insoluble

Soluble

Covalent

Solvent

Mist is an example of solution:

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liquid in gas

gas in liquid

solid gas

gas in solid

The property of being polar in nature is called:

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Polarity

Chemistry

Both

Nil

Sort out a compound from the following

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Air

Salt

Ice-cream

Iron

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

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Positive

Negative

Neutral

Charged

Oxygen is ___________

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Metals

Non-metals

Gas

b & c

The solution in which one component is aqueous ____________ solution.

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Aqueous

Binary

All

None

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