FBISE 9th Class MCQs Chemistry Chapter No.1

FBISE Class 9 - Chemistry Chapter No.01

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What is the mass of 4 moles Hydrogen Gas ?

4.032g

8.064g

1g

1.008g

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The electron configuration of an element is 1s²2s¹ , An atom of this element will form an ion that will have charge ?

2

3

-1

1

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The third abundant gas found in the atmosphere is:

Carbon Monoxide

Nitrogen

Argon

Oxygen

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Which one of the following element is found in most abundance in the earth's crust?

Silicon

Oxygen

Iron

Aluminium

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Which of the following list contains only elements?

Calcium,Sulphur,Carbon

Air,water,Fire,Earth

Hydrogen,Oxygen,Brass

Air,Water,Oxygen

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Mass of one mole of chlorine gas is:

71 grams

32 grams

46 grams

35.5 grams

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The molar mass of H2SO4 is:

98amu

98g

9.8g

9.8amu

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The most abundant element occurring in the oceans is:

Hydrogen

Oxygen

Silicon

Nitrogen

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What is the mass of carbon present in 44g of Carbon Oxide ?

6g

12g

24g

44g

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A compound with chemical formula Na2CX3 has formula mass106amu.Atomic mass of the Element X is

106

16

23

12

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The mass of one molecule of water is:

18g

18amu

18mg

18kg

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Which one of the following is a molecular mass of O2 in amu ?

1.92x10-25amu

192.64x10-25amu

53.12x10-24amu

32amu

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How many numbers of moles are equivalent to 8 grams of CO2?

0.18

0.24

0.21

0.15

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58.5g mol-1 is the :

Formula mass of NaCl

Molar mass of NaCl

All are true

Mass of the formula or molecular unit of NaCl

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Industrial Chemistry Deals With The Manufacturing Of compound.

On Micro Scale

On Economic Scale

On Commercial Scale

In The Laboratory

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Atoms are groups of atoms which are electrically neutral are called:

Carbons ions

Cations

Radicals

Anions

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18.02g of h2O sample has :

1 mole of hydrogen

6.022x1023 moles of H2O

1/2 mole of O atoms

6.022x1023 molecules of H2O

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Which one of the following can be separated by physical means?

Radical

Mixture

Compound

Element

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The mass of one molecule of water is:

18mg

18kg

18g

18amu

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One amu ( atomic mass unit ) is equivalent to:

1.66*10-24g

1.66*10+24mg

1.66*10+24kg

1.66*10+23g

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How many moles of molecules are there in 16g oxygen ?

0.05

1

0.5

0.1

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What is formula mass of CuSO₄sub.5H₂O(Atomic masses Cu=63.5 , S=32,O=16,H=1)

159.5

249.5

185.5

149.5

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If one mole of carbon contains X atoms, What is the number of atoms contained in 12g of Mg.

2x

x

0.5x

1.5x

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Which one of the following molecule is not tri-atomic?

O3

H2

H2O

CO2

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Which term is the same for one mole of Oxygen and one mole of water ?

Atoms

Volume

Molecules

Mass

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Which one of the following pair has the same mass?

1 mole of CO and 1 mole of CO2

1 mole of CO and 1 mole of N2

1 mole of O2 and 1 mole of CO3

1 mole of O2 and 1 mole of N2

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Which one of the following pair has the same number of ions?

1/2 mole of NaCl and 1/3 mole of MgCl2

1 mole of NaCl and 1 mole of Mg Cl2

1/2 mole of NaCl and 1/2 mole of MgCl2

1/3 mole of NaCl and 1/2 mole of MgCl2

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