Question # 1

Bucky Balls are used as ________________

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Cutting

Grafting

Lubricants

Nil

Which one is the following belongs no Noble Gases?

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O

F

Ne

Nil

Smoke in air is the example of solution.

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Gas in Gas

Gas in liquid

liquid in Gas

Solid in Gas

O3, Ozone is _________ molecules.

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Homoatomic

Hetroatomic

Monoatomic

Nil

............... periodic table consist of group & periods.

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Bohr

Rutherford

Mendeleev's

Nil

Alpha particles are double charged.

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Negative

Positive

Can be both

Nil

Oxidation means

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Gain of oxygen

Removal of oxygen

Gain of hydrogen

Gain of electrons

The cathode of Nelson's cell is made up of

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C

Zn

Cu

Fe

CO2 the oxidation number of C =.

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+1

+2

+3

+4

_________ shells of noble gases is complete.

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Outer most

2

1

Nil

Sodium has ________________ no. of protons.

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11

12

13

14

All are noble metals except:

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Silver

Gold

Hydrogen

Platinum

Number of protons+ neutrons is :

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Atomic mass

Mass numbers

Both

Nil

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