## Avogadro's law MCQ Basic Level

Compared to other sections, Chemistry is considered to be the most scoring section. If prepared thoroughly, chemistry can help students to secure a meritorious position in the exam. These questions are very important in achieving your success in Exams after 12th.

Q1. “One gram molecule of a gas at N.T.P. occupies 22.4 litres.” This fact was derived from

•  Dalton's theory
•  Berzelius hypothesis
•  Law of gaseous volume

Q2. In a closed flask of 5 litres, 1.0 g of H2 is heated from 300 to 600 K. which statement is not correct

•  Pressure of the gas increases
•  The rate of collision increases
•  The number of moles of gas increases
•  The energy of gaseous molecules increases

The number of moles of gas increases

Q3. Which one of the following statements is false

•  Avogadro number = 6.02 X 1021
•  The relationship between average velocity(v) and root mean square velocity (u) is v = 0.9213 u
•  The mean kinetic energy of an ideal gas is independent of the pressure of the gas
•  The root mean square velocity of the gas can be calculated by the formula (3RT/M)1/2

Avogadro number = 6.02 X 1021

Q4. The number of moles of any gas is given by

•  n/V
•  nNA
•  N/NA
•  mnNA

N/NA

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