11. What is the difference between the atomic mass units of subsequent members of a homogeneous series?
12. The proven formula using the compound is CH2O, its vapor density is 90. The molecular formula of the compound is:
13. Which of the following is not a correct match?
14. was the first person to isolate methane gas. He discovered that methane mixture with air could be exploded using an electric spark.
15. Acetylene is used as an anaesthetic under the name of
16. The homogeneous series is a class of carbon compounds in which . . . . . . . .
17. Denatured spirit is ethanol mixed with
18. The compound in which the C-atom form a closed chain are termed as
19. 5 - 8% acetic acid is called.
20. Which of the following is organic acid?
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