What is the percentage of formaldehyde in formalin (in $\%$)?
- A$60$
- B$40$
- C$10$
- D$20$
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Similar Questions
The product of reduction of benzaldehyde is
Medium
View SolutionAldehydes that do not undergo aldol condensation are:
$1$. $CH_3CH_2CHO$ (propanal)
$2$. $Cl_3CCHO$ (trichloroethanal)
$3$. $HCHO$ (methanal)
$4$. $CH_3CHO$ (ethanal)
$5$. $C_6H_5CHO$ (benzaldehyde)
$1$. $CH_3CH_2CHO$ (propanal)
$2$. $Cl_3CCHO$ (trichloroethanal)
$3$. $HCHO$ (methanal)
$4$. $CH_3CHO$ (ethanal)
$5$. $C_6H_5CHO$ (benzaldehyde)
MediumAIIMS 2016
View SolutionMatch the following:
Column-$1$ (Reaction of carbonyl compound with) Column-$2$ (Product) $A$. Hydroxylamine $I$. Hydrazone $B$. Alcohol $II$. Schiff's base (Substituted imine) $C$. Hydrazine $III$. Oxime $D$. Amine $IV$. Ketal
The correct match is:
| Column-$1$ (Reaction of carbonyl compound with) | Column-$2$ (Product) |
|---|---|
| $A$. Hydroxylamine | $I$. Hydrazone |
| $B$. Alcohol | $II$. Schiff's base (Substituted imine) |
| $C$. Hydrazine | $III$. Oxime |
| $D$. Amine | $IV$. Ketal |
In the Claisen$-$Schmidt reaction to prepare dibenzalacetone from $5.3 \ g$ benzaldehyde,a total of $3.51 \ g$ of product was obtained. The percentage yield in this reaction was $......... \%.$
DifficultJEE MAIN 2025
View SolutionWhich of the following is an example of a conjugated diketone?
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