The maximum number of molecules is present in

⇦

⇨

The maximum number of molecules is present in

Options

(a) 15 L of H₂ gas at STP
(b) 5L of N₂ gas as STP
(c) 0.5 g of H₂ gas
(d) 10 g of O₂ gas

Correct Answer:

15 L of H₂ gas at STP

Explanation:

a)22.4 litre at STP contains 6.02 x 10²³ molecules of Hydrogen
15litre at STP contains = (15/22.4 ) x 6.02 x 10²³ molecules
b)22.4 litre at STP contains 6.02 x 10²³ molecules of Nitrogen
5 litre at STP contains = (5/22.4 ) x 6.02 x 10²³ molecules
c)2 g of hydrogen contains 6.02 x 10²³ molecules of hydrogen
0.5 g of Hydrogen contains = (0.5/2 ) x 6.02 x 10²³ molecules
c)32 g of oxygen contains 6.02 x 10²³ molecules of hydrogen
10 g of Hydrogen contains = (10/32 ) x 6.02 x 10²³ molecules
Thus (a) will have ma

Related Questions:

1. One mole of an ideal gas at 300 K is expanded isothermally
2. According to MO theory which of the following lists ranks the nitrogen species
3. Which of the following molecules has the largest root mean square velocity at 25°C
4. Beryllium and aluminium exhibit many properties which are similar.
5. What is the packet of energy called?

Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Basic Concepts of Chemistry (94)
Subject: Chemistry (2512)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends