| ⇦ | 
| ⇨ |
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: - If concentration of reactants is increased by ‘x’,then the K becomes
- Heat produced on burning 6.3 g of a fule raises the temperature of 1.5 kg
- The oxidation numbers of hydrogen in KH,MgH₂ and NaH are respectively
- Which of the following salts will give highest pH in water
- What is the maximum number of orbitals that can be identified with the following
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
- If concentration of reactants is increased by ‘x’,then the K becomes
- Heat produced on burning 6.3 g of a fule raises the temperature of 1.5 kg
- The oxidation numbers of hydrogen in KH,MgH₂ and NaH are respectively
- Which of the following salts will give highest pH in water
- What is the maximum number of orbitals that can be identified with the following
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