Advertisements
Advertisements
प्रश्न
How propanal is converted into propane.
उत्तर
\[\ce{\underset{(Propanal)}{CH3 - CH2} - CHO + 4[H] ->[Zn-Hg, conc.HCl][Δ] \underset{(Propane)}{CH3 - CH2} - CH3 + H2O}\]
APPEARS IN
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.
\[\ce{R-CHO + 2Ag(NH_{3})^{+}_{2} + OH^{-}->[\triangle] R-CO{O}^{-} + 2Ag↓ + 4NH3 + 2H2O}\]
Write the name of the product when ketones react with 1,2-diol in presence of dry HCl.
Write a reaction to distinguish acetaldehyde from acetone
Write reactions for the action of the following reagents on p-chlorobenzaldehyde.
Phenyl hydrazine
Aldol condensation between which of the following compounds followed by dehydration gives 4-Methylpent-3-en-2-one?
Identify A in the following reaction.
\[\ce{A + CH3MgBr ->[Ether] complex ->[H3O+] (CH3)3C - OH}\]
Acetone reacts with iodine (I2) to form iodoform, in the presence of ____________.
Which of following is not a property of red phosphorus?
An aldehyde or ketone reacts with hydrogen cyanide to form corresponding cyanohydrin derivatives. This reaction is an example of ____________.
Following reaction is an example of ____________.
\[\ce{Benzaldehyde ->[Nitration] {m}-Nitrobenzaldehyde}\]
Which of the following is a Wolf - Kishner reduction?
Which of the following reagents is used to avoid further oxidation of aldehydes?
Which of the following reagents is used for the following conversion?
\[\ce{CH3 - CH = CH - CHO -> CH3 - CH = CH - CH2OH}\]
Assertion: 2, 2-dimethyl propanoic acid does not give HVZ reaction.
Reason: 2-2, dimethyl propanoic acid does not have α-hydrogen atom.
Phenyl methanal is reacted with concentrated NaOH to give two products X and Y. X reacts with metallic sodium to liberate hydrogen X and Y are ____________.
Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their ____________.
Identify A, B, C and D.
\[\ce{ethanoic acid ->[SOCl2] A ->[Pd/BaSO4] B ->[NaOH] C ->[][\Delta] D}\]
How will you convert benzaldehyde into the following compound?
Benzoic acid
How is the following conversion effected phenyl methanal into benzoic acid?
Identify A, B and C.
How will you prepare ethane from sodium acetate?
Which of the following compound will show a positive silver mirror test?
A substance C4H10O yields on oxidation a compound, C4H8O which gives an oxime and a positive iodoform test. The original substance on treatment with a conc. H2SO4 gives C4H8. The structure of the compound is ______.
In the above reaction, product (B) is:
Which of the following compounds does not undergo a haloform reaction?
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
How will you prepare Acetic anhydride from acetic acid ?
Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.
How will you prepare acetic anhydride from acetic acid?
