| ⇦ | 
| ⇨ |
If 30 mL of H₂ and 20 mL of O₂ reacts to form water. what is left at the end of the reaction?
Options
(a) 10 mL of H₂
(b) 5 mL of H₂
(c) 10 mL of O₂
(d) 5 mL of O₂
Correct Answer:
5 mL of O₂
Explanation:
2H₂ + O₂ → 2H₂O
2 mol 1 mol 2 mol
2 vol 1 vol 2 vol
30 mL 15 mL 30 mL
Therefore, oxygen is in excess and amount of oxygen left
=20- 15= 5 mL
Related Questions: - The basic component of photochemical smog is
- Enzymes with two sites are called
- The interatomic distances in H₂ and Cl molecules are 74 and 198 pm respectively
- After tow hours, the ratioactive substance becomes 1/16th of original amount
- The wavelength of the radiation emitted when an electron drops from 3rd orbit
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
- The basic component of photochemical smog is
- Enzymes with two sites are called
- The interatomic distances in H₂ and Cl molecules are 74 and 198 pm respectively
- After tow hours, the ratioactive substance becomes 1/16th of original amount
- The wavelength of the radiation emitted when an electron drops from 3rd orbit
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
Leave a Reply