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Byju's Answer
Standard XII
Chemistry
Dehydrohalogenation for Alkenes
Assertion:-Te...
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Assertion:-Tert. butyl alcohol on heating with conc. H2SO4 at 413 K gives 2-methyl propane as the main product and not di-tert. butyl ether. Reason:- All alcohols are readily dehydrated with conc. H2S04.
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Q.
Assertion :Tert-butyl methyl ether on treatment with HI at
100
o
C
gives a mixture of methyl iodide and tert-butyl alcohol. Reason: This reaction occur via
S
N
2
mechanism.
Q.
Assertion :tert-butyl alcohol undergoes acid catalysed dehydration readily than propanol. Reason:
3
°
alcohols do not give Victor-Meyer’s test
Q.
When a mixture of t-butyl alcohol and ethyl alcohol is heated with conc.
H
2
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,
a single ether product is obtained. Identify the product giving proper reasons.
Q.
Given below are two statements labelled as Assertion (A) and Reason (R).
Assertion (A):
Di-tert-butyl ether cannot be prepared by Williamson's synthesis.
Reason (R):
tert-butylbromide on treatment with sodium tert-butoxide preferentially undergoes elimination to from iso-butylene and tert-butyl alcohol.
Q.
Which of the following alkenes when passed through conc.
H
2
S
O
4
followed by hydrolysis with boiling water would give tert-butyl alcohol?
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