Engineering
Chemistry
Test of alcohol
Basic Concepts of GOC
Basic concepts of organic chemistry
Question
There are four alcohols P, Q, R, S which have 3, 2, 1, zero alpha hydrogen atoms, which will not give any color in Victor Meyer test:
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Solution
The Victor Meyer test detects alcohols that can form carbocations, which react to give color. Only alcohols with at least one α-hydrogen can undergo dehydration to form an alkene, which then forms a carbocation. Alcohols with zero α-hydrogens cannot dehydrate and give no color.
Given: P (3 α-H), Q (2 α-H), R (1 α-H) will give color. S (0 α-H) cannot dehydrate and gives no color.
Final answer: S