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प्रश्न
Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?
पर्याय
\[\ce{H2 (excess)/Pt}\]
\[\ce{LiAlH4}\] in ether
\[\ce{Fe}\] and \[\ce{HCl}\]
\[\ce{Sn}\] and \[\ce{HCl}\]
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उत्तर
\[\ce{LiAlH4}\] in ether
Explanation:
Lithium aluminium hydride in either is a strong reducing agent that donated its \[\ce{H-}\] hydride ion to any \[\ce{C = O}\] containing a functional group. In addition to \[\ce{LiAlH}\], to aryl nitro compounds, no reaction will be observed, the desired products of amines will not be produced, rather it will form diazobenzene products.
\[\ce{2C4H5NO ->[LiAlH4/ether] C6H5N = N - C6H5}\]
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Reason (R): Alkyl halides have halogen attached to sp3 hybrid carbon.
Select the most appropriate answer from the options given below:
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(i) \[\ce{Sn/HCl}\]
(ii) \[\ce{Fe/HCl}\]
(iii) \[\ce{H2 - Pd}\]
(iv) \[\ce{Sn/NH4OH}\]
Which of the following reactions are correct?
(i)
(ii)
(iii)
(iv)
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(ii) Acetic anyhdride/pyridine followed by conc.\[\ce{H2SO4}\] + conc.\[\ce{HNO3}\].
(iii) Dil. HCl followed by reaction with conc.\[\ce{H2SO4}\] + conc.\[\ce{HNO3}\].
(iv) Reaction with conc.\[\ce{HNO3}\] + conc.\[\ce{H2 SO4}\].
How will you carry out the following conversion?
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Account for the following:
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