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प्रश्न
In which of the following reactions new carbon-carbon bond is not formed?
पर्याय
Aldol condensation
Friedel craft reaction
Kolbe’s reaction
Wolf kishner reduction
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उत्तर
Wolf kishner reduction
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संबंधित प्रश्न
Answer in brief.
Observe the following equation of reaction of Tollens' reagent with aldehyde. How do we know that a redox reaction has taken place? Explain.
\[\ce{R-CHO + 2Ag(NH_{3})^{+}_{2} + OH^{-}->[\triangle] R-CO{O}^{-} + 2Ag↓ + 4NH3 + 2H2O}\]
Identify B in the following reaction,
\[\ce{Acetaldoxime ->[Na][alcohol] A ->[NaNO2][HCl] B + H2O + N2\uparrow}\]
An aldehyde or ketone reacts with hydrogen cyanide to form corresponding cyanohydrin derivatives. This reaction is an example of ____________.
Which of the following is a Wolf - Kishner reduction?
\[\ce{CH2 = CH2 ->[i) O3][ii) Zn/H2O] X ->[NH3] Y}\] ‘Y’ is:
Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their ____________.
How is the following conversion effected phenyl methanal into benzoin?
Which of the following compound will show a positive silver mirror test?
Which of the following compounds does not undergo a haloform reaction?
Which from following tests confirms presence of aldehydic group in glucose?
