List of top Chemistry Questions on Aldehydes, Ketones and Carboxylic Acids

Arrange the following acids in increasing order of their acidic strengths: HCOOH, FCH₂COOH, NO₂CH₂COOH, ClCH₂COOH

The increasing order of acidity of the following compounds based on pKa values:
(A) BrCH$_2$COOH
(B) ClCH$_2$COOH
(C) FCH$_2$COOH
(D) HCOOH

An organic compound P having molecular formula C6H6O3 gives ferric chloride test and does not have intramolecular hydrogen bond. The compound P reacts with 3 equivalents of NH2OH to produce oxime Q. Treatment of P with excess methyl iodide in the presence of KOH produces compound R as the major product. Reaction of R with excess iso-butylmagnesium bromide followed by treatment with H3O+ gives compound S as the major product.
The total number of methyl (−CH3) group(s) in compound S is ____.
Complete reaction of acetaldehyde with excess formaldehyde, upon heating with conc. NaOH solution, gives P and Q. Compound P does not give Tollens' test, whereas Q on acidification gives positive Tollens' test. Treatment of P with excess cyclohexanone in the presence of catalytic amount of p-toluenesulfonic acid (PTSA) gives product R.
Sum of the number of methylene groups (-CH2-) and oxygen atoms in R is _______
In the following reaction sequence, the major product Q is
\(\text{L-Glucose}\xrightarrow[ii)Cr_2,775K,10-20 \text{atm}]{i)HI, \Delta}P\xrightarrow[UV]{Cl_2(excess)}Q\)
Which of the following compounds will give the Hell-Volhard-Zelinsky reaction?
The correct structure of dipeptide, Gly-Ala (glycyl alanine) is:
In the Etard reaction, the final product is
For an SN2 reaction, arrange the following alkyl halides in increasing order of reactivity:
(A) CH3CH2CH2CH2
(B) CH3CH2CH(Br)CH3
(C) (CH3)3
(D) (CH3)2CHCH2
What is the color of copper compound formed in Fehling’s test for aliphatic aldehydes?
What is the product when glucose reacts with bromine water?

What is 'C' in the given sequence of reactions?

Identify the set, in which X and Y are correctly matched:

The number of \(\pi\)-bonds present in benzoic acid is:

Which reagent on reacting with phenol gives salicylaldehyde?
What is the correct IUPAC name of the given compound?
correct IUPAC name of the given compound
Consider the given reaction, identify the major product P.
Chemical Reaction

The products of the following reactions \( X \) and \( Y \) respectively are Reaction: 

The following graph is obtained for KCl solution at 300 K. What is \( \Lambda_m^0 \) (in S cm² mol\(^{-1}\)) of KCl? 

What are Y and Z respectively in the given reaction sequence? 

The diffraction pattern of a crystalline solid gave a peak at \( 2\theta = 60^\circ \). Its ‘d’ value is 1.54 Å. What is the wavelength (in cm) of X-rays used?

What are X and Y respectively in the following reactions? 

Which of the following sequence of reagents convert benzaldehyde to 4-chlorotoluene?
In the following reaction sequence, what are X and Y respectively?
nucleophilic addition of a methoxy group
The pK\(_a\) values of X, Y, Z respectively are 8.3, 7.1, 10.2. What are X, Y, Z?