PHYSICS AND MEASUREMENT MCQ Quiz: GKFix - Bridge of Knowledge

Question 1

What is the radius of a hydrogen molecule if its diameter is 1 Å?

1 × 10⁻¹⁰ m
5 × 10⁻¹¹ m
2.5 × 10⁻¹¹ m
5 × 10⁻¹⁰ m

Question 2

If the size of a hydrogen molecule is about 1 Å, what is its diameter in meters?

10⁻⁹ m
10⁻¹¹ m
10⁻¹⁰ m
10⁻⁸ m

Question 3

What is the total atomic volume of one mole of hydrogen atoms in m³?

2.48 × 10⁻⁷ m³
3.15 × 10⁻⁷ m³
1.89 × 10⁻⁶ m³
4.33 × 10⁻⁸ m³

Question 4

What is the volume of a single hydrogen atom assuming it is a sphere?

6.12 × 10⁻³¹ m³
5.24 × 10⁻³¹ m³
4.19 × 10⁻³¹ m³
3.82 × 10⁻³¹ m³

Question 5

How many hydrogen atoms are there in one mole of hydrogen?

3.011 × 10²³
6.022 × 10²³
1 × 10²³
2.014 × 10²³