0.037g of an alcohol, R-OH was added to C₂H₅Mgl and the has evolved measured 11.2cc

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0.037g of an alcohol, R-OH was added to C₂H₅Mgl and the has evolved measured 11.2cc at STP. The molecular mass of R-OH will be

Options

(a) 47
(b) 79
(c) 77
(d) 74

Correct Answer:

74

Explanation:

R—OH + C₂H₅Mgl → C₂H₆ + RMgl
0.037 11.2 cc
11.2 cc gas evolved by alcohol= 0.037 g
22400 cc gas will be evolved by alcohol
= 0.037/11.2 x 22400
= 74 g

Related Questions:

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2. Which metal is extracted by complexing with KCN
3. Water softening by Clark’s process uses
4. Amines behave as
5. The long form of periodic table is based on

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

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