Question # 1

Which of the following result in discovery of proton?

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cathode rays

canal rays

x-rays

alpha rays

Air is an example of:

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Gas in gas

Solid in gas

Liquid in gas

Gas in ;iquid

The example of solution of a solid solute in a solid solvent is

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Brass

Fog

Cheese

Air

D-block consists of:

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4th,5th & 6th periods

2nd, 3rd & 4th periods

1st, 2nd, & 3rd periods

The bond between two atoms will be ionic if the difference between their electronegativities is:

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Less than 1.7

Greater than 1.7

Zero

Less than 1.2

Cu + 2AgNO3 -------> Cu(NO3) +2Ag. In this reaction reducing agent is:

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Cu

AgNO3

Cu(NO3)2

Ag

Solids are fixed ____________

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Shape

Velocity

Mass

Atoms

Which one of the following gas diffuses faster?

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hydrogen

helium

fluorine

chlorine

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

The molecular mass of water is

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16 amu

14 amu

18 amu

20 amu

The cathode of Daniel cell is made up of

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Zn

Cu

AI

C

H2O is what type of molecules it is:

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Manoatomic

Polyatomic

Pentaatomic

Nil

H° - H° has ________________ energy.

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Lower

Higher

Medium

Nil

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9th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers

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