Question # 1

What is the mass of 4 moles of hydrogen gas.

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1 g

1.008 g

8.064 g

4.032 g

Whof the following represent sand?

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NaCl

CaCO3

H2O

CH2O

1 gram formula of NaCl contan is grams.

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100 g

58.5 g

32 g

49 g

40 g of H₃PO₄ contains numebr of moles

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0.58 g

4.8 g

5.8 g

0.408 g

Empirical formula of hydrogen peroxide.

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HO

CO

CHO

CH

Stochiometric calculators are used to prepare.

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Soaps

Shampo

Perfumes

All of these

1- gram atom of carbon contain hwo many moles.

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1 mole

2 mole

6 moles

12 moles

Whcih term is the same for one mole of oxgen and one mole of water.

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atoms

mass

Molecules

Volume

How many atom of carbon are present in one molecule of glucose.

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11

22

12

6

Formula of common salt is

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NaCl

AgCl

LiCl

KCl

Number of moels in 29.25 g NaCl is.

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0.50

0.25

0.21

0.75

Whcih law is obeyed in chemicla calculations?

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Law of mass action

Law of conservationof mass

Law of definite proportion

Both a and b

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Chemistry 9th Class English Medium Unit 4 Online Test MCQs With Answers

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