Chemistry 9 Chapter 1 Practice Test 4

ByMuhammad Zaman

Chemistry 9 Chapter 1 Practice Test 4

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Class 9 Chemistry

Chapter 1

Practice MCQs Test No 4

1 / 10

0.25 moles of SO2 will contain:

2 / 10

How many atoms are there in 0.1 moles of Carbon?

3 / 10

The empirical formula for caffeine (C8H10N4O2) is:

4 / 10

How many moles of Na atoms are present in 2.3 g of Na?

5 / 10

Atomic masses of H and O are 1 amu and 16 amu respectively. The molecular mass of hydrogen peroxide (H2O2) is:

6 / 10

How many atoms are there in 1.25 moles of Zinc?

7 / 10

Which of the following is the correct empirical formula of C6H4O(NO2)3?

8 / 10

A compound with chemical formula Na2CX3 has formula mass 106 amu. What is the atomic mass of the element X?  [Atomic Masses: C=12, Na=23]

9 / 10

If molar mass of a compound is 90 g/mole, the number of its moles containing 3.011×1023 molecules will be:

10 / 10

A compound with chemical formula BaSX4 has a formula mass 233 amu. Atomic mass of the element X is:

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