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The number of oxygen atoms in 4.4g of CO₂ is
Options
(a) 1.2 x 10²³
(b) 6 x 10²²
(c) 6 x 10²³
(d) 12 x 10²³
Correct Answer:
1.2 x 10²³
Explanation:
Atomic Mass of C=12
Atomic Mass of O=16
mol.wt of CO₂=12 + (16 x 2) = 44
4.4 g CO₂ = 4.4/44 = 0.1 mol CO₂
=6.02 x 10²² molecules
=2 x 6 x 10²² atoms of O
Related Questions: - Which of the following is isoelectronic?
- A dibromo derivative of an alkane reacts with sodium metal to form an alicyclic
- Hydrolysis of ester, in an acidic medium, is
- The reagent commonly used to determine hardness of water titrimetrically is
- During the electrolysis of H₂O, volume of H₂ and O₂ are released in the ratio
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
- Which of the following is isoelectronic?
- A dibromo derivative of an alkane reacts with sodium metal to form an alicyclic
- Hydrolysis of ester, in an acidic medium, is
- The reagent commonly used to determine hardness of water titrimetrically is
- During the electrolysis of H₂O, volume of H₂ and O₂ are released in the ratio
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
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