Question # 1

Atoms as a whole is _________

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+

_

No

Neutral

The mass of one molecule of water is:

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18 amu

18g

18mg

18kg

Which one is largest?

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Exo

Peta

Atto

Pico

_________ shells of noble gases is complete.

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Outer most

2

1

Nil

The atomic number of sodium is ............... .

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9

10

11

12

Mixture has _________ types.

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3

2

1

No types

The molecular mass of water is

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16 amu

14 amu

18 amu

20 amu

The study of hydrocarbons and their derived compounds is called

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Physical chemistry

Inorganic chemistry

Organic chemistry

Biochemistry

One amu (atomic mass unit) is equivalent to:

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1.66x10^-24 mg

1.66x 10^-24g

1.66x10 g

1.66x10^-23mg

Atoms are made of sub _________

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Atoms

Molecules

Charge

Atomic particles

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

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Positive

Negative

Neutral

Charged

The number of proton in an atom is called _________ number.

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Molecule

Formula

Atomic

Molar

The empirical formula of glucose is

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CHO

CH2O

C2HO

CHO2

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Chemistry 9th Class English Medium Unit 1 Online Test MCQs With Answers

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