Question # 1

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

Potassium's atomic no. is :

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17

18

19

20

Atoms as a whole is _________

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+

_

No

Neutral

Which one an example of heterogeneous mixture?

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Ice cream

Concrete

Both a & b

NiL

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

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Positive

Negative

Neutral

Charged

Number of protons+ neutrons is :

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Atomic mass

Mass numbers

Both

Nil

The empirical formula of glucose is

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CHO

CH2O

C2HO

CHO2

The formula of benzene is _________

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C6H6O3

C6H6

C12H22

Nil

Elements are represented by chemical _________

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Abbreviation

Unit

Symbols

It can be represented

Scientist used ___________ method.

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Scientific

Non-scientific

Bot

Non

All chemists invented all except:

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Beakers

Spirit lamp

Funnels

Retorts

Atoms are made of sub _________

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Atoms

Molecules

Charge

Atomic particles

Which one is largest?

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Exo

Peta

Atto

Pico

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

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