⇦ | ⇨ |
An organic compound containing C, H and O gave the following analysis:
C=40%; H=6.66%; Its empirical formula would be
Options
(a) C₃H₆O
(b) CHO
(c) CH₂O
(d) CH₄O
Correct Answer:
CH₂O
Explanation:
At wt of C = 12
Rel Number for C = 40/12 = 3.22
Ratio for C = 3.66/3.33 = 1
At wt of H = 1
Rel Number for H = 6.66/1 = 6.66
Ratio for H = 6.66/3.33 = 2
At wt of O = 16
% of O = 100 – (40+6.66) = 53.34%
Rel Number for O = 53.34/16 = 3.33
Ratio for O = 3.33/3.33 = 1
Hence empirical formula is CH₂O
Related Questions: - The hydrolysis of 2-bromo-3-methylbutane by SN1mechanism gives mainly
- The trivial names of propanone and 3-methyl-2-butanone are
- H₂O₂ reduces MnO₄⁻ ion to
- Primary alcohols can be prepared by the reaction of RMgx with
- The minimum amount of energy required for the reacting molecules to undergo
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 hydrolysis of 2-bromo-3-methylbutane by SN1mechanism gives mainly
- The trivial names of propanone and 3-methyl-2-butanone are
- H₂O₂ reduces MnO₄⁻ ion to
- Primary alcohols can be prepared by the reaction of RMgx with
- The minimum amount of energy required for the reacting molecules to undergo
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