A mixture of benzaldehyde and formaldehyde when treated with 50% NaOH yields
sodium benzoate and sodium formate
sodium formate and benzyl alcohol
sodium benzoate and methyl alcohol
benzyl alcohol and methyl alcohol
The correct order of reactivity of aldehydes and ketones towards hydrogen cyanide is
CH3COCH3 > CH3CHO > HCHO
CH3COCH3 > HCHO > CH3CHO
CH3CHO > CH3COCH3 > HCHO
HCHO > CH3CHO > CH3COCH3
The acid, which contains both -OH and -COOH groups is
phthalic acid
adipic acid
glutaric acid
salicylic acid
Nitration of which among the following compounds yields cyclonite?
Formaldehyde
Benzaldehyde
Urotropine
Acetaldehyde ammonia
Aldehyde or ketones when treated with C6H5 - NH - NH2, the product formed is
semicarbazone
phenlhydrazone
hydrazone
oxime
Which of the following in Baeyer's reagent?
Alkaline KMnO4
Acidic K2Cr2O7
Alkaline Na2Cr2O7
MnO2
The correct increasing order of the acidic strength of acids, butyric acid (I), 2-chlorobutyric acid (II), 3-chlorobutyric acid (III) and 2, 2-dichlorobutyric acid (IV) is
I < II < III < IV
III < II < IV < I
I < III < II < IV
III < I < II < IV
The condensation reaction between one equivalent of acetone and two equivalents of benzaldehyde in presence of dilute alkali leads to the formation of
Benzalacetophenone
Benzylideneacetone
Dibenzylideneacetone
Benzoic acid and acetic acid
C.
Dibenzylideneacetone
When two moles of benzaldehyde react with one mole of acetone. It shows aldol condensation as follows-
Therefore, among all the given options, option c is the correct one.
Which one of the following involves nucleophilic addition?
Kolbe's reaction of phenol
Williamson synthesis of ethers
Aldol formation from ethanol
Reimer-Tiemann reaction of phenol