An organic compound containing C, H and O gave the following analysis

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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:

1. Which of these is a hypnotic
2. The following quantum numbers are possible for how many orbital(s)
3. What is the dominant intermolecular force or bond that must be overcome
4. In solid ice, oxygen atom is surrounded
5. The substance that causes temporary hardness in water is

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

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