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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: - Which of the following reaction(s) can be used for the preparation of alkyl halides?
- Which one of the following statements concerning lanthanides elements is false
- In the reaction : 2N₂O₅ → 4NO₂ + O₂, initial pressure is 500 atm and rate
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- The number of significant figures for the three numbers 161 cm, 0.161 cm
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
- Which of the following reaction(s) can be used for the preparation of alkyl halides?
- Which one of the following statements concerning lanthanides elements is false
- In the reaction : 2N₂O₅ → 4NO₂ + O₂, initial pressure is 500 atm and rate
- The correct order of electron affinity is
- The number of significant figures for the three numbers 161 cm, 0.161 cm
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
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