## Avogadro's Law - MCQ - Basic Level

Physics is an important subject in preparation for various Competitive exams. To keep a track of your preparation we have designed a small quiz of Basic Level Questions on Avogadro's Law. You have 10 minutes to solve the quiz, click the start timer button in order to start the timer and then click on submit button at the end to submit the quiz and view your scores and correct answers.

Q1. At N.T.P., sample of equal volume of chlorine and oxygen is taken. Now ratio of number of molecules

•  1:1
•  32:27
•  2:1
•  16:14

Q2. If Avogadro’s number is 6 x 1023, then approximate number of molecules in 1 cm3 of water will be

•  1 x 1023
•  6 x 1023
•  22.4 x 1023
•  (1/3) x 1023

Q3. The number of molecules per cc of a gas at STP is

•  2.68 x 1017
•  2.68 x 1019
•  6 x 1023
•  22400 x 6 x 1023

Q4. The residual pressure of a vessel at 27°C is 1 x 10-11 N/m2. The number of molecules per cc in this vessel is nearly

•  2400
•  2.4 x 106
•  10-11 x 6 x 1023
•  2.68 x 1019 x 10-11

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