Question # 1

Halogens with metals for

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Ionic bond

Covalent bond

Dative covalent bond

Metallic bond

the homogeneous mixture of two or more substances is ____________.

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Solution

Stronger

Suspension

None

The equation of relationship between atomic number (Z) and mass number (A) is

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A = Z + N

A = Z - n

A = Z

A =2Z + n

Transfer of electrons between atoms results in:

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metallic bonding

ionic bonding

covalent bonding

coordinate covalent bonding

Bronze (alloy) is a ____________

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Slolution

Mixture

a & b

Nil

The component of solution in larger amounts is ____________

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Solute

Solvent

a & b

Nil

____________ agents gains electrons in chemical reaction.

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Reduction

Oxidation

Both

None of these

A _________ is a pure substance is made up of two or more elements.

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Mixture

Elements

Solution

Compound

The most abundant element occurring in the oceans is:

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Oxygen

Hydrogen

Nitrogen

Silicon

________________ elements were discovered in year 1800.

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34

35

36

37

Canal rays are actually

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Electrons

Protons

Neutrons

X-rays

Which one is an example of colloids?

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NaCl + Solution

Milk

Fog

Air

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