Home/Carboxylic acid
Preparation of carboxylic acid by ( carbonation of Grignard reagent, Hydrolysis of Nitriles, oxidation of alcohols and aldehydes , oxidative cleavage of Alkene,
Question#1
Which of the acids cannot be prepared by Grignard reagent [MH CET 2004]
Formic acid can not be prepared by Grignard’s reagent. Higher acids are prepared by the reaction of CO2 on Grignard’s reagent
Question#2
How will you convert butan-2-one to propanoic acid [IIT-JEE (Screening) 2005]
\( CH_3-CO-CH_3 + I_2 + NaOH \rightarrow C_2H_5-ONa + CHI_3 + H_2O \)
Question#3
R CH 2CH 2OH can be converted into . RCH 2CH 2COOH The correct sequence of the reagents is [AIIMS 1997]
\( R-CH_2CH_2OH + PBr_3 \rightarrow R CH_2CH_2 Br \xrightarrow{KCN} RCH_2CH_2CN \xrightarrow{H3O+} RCH_2CH_2COOH \)
Question#4
X is heated with soda lime and gives ethane. X is [AFMC 2005]
Question#5
The end product B in the sequence of reactions
\( R-X \xrightarrow{CN-} A \xrightarrow{NaOH} B \) is [CPMT 1985]
Question#6
Acetic acid will be obtained on oxidation of [J & K 2005]
Question#7
Toluene is oxidised to benzoic acid by [BHU 2004; CPMT 1985]
Question#8
The compound X, in the reaction, is
\( X \xrightarrow{CH3MgI} Y \xrightarrow{Hydrolysis} Mg(OH)I + CH_3COOH \) [Pb. CET 2003]
Question#9
Primary aldehyde on oxidation gives [DPMT 20004]
Question#10
CO2 on reaction with ethyl magnesium bromide gives [BHU 1983]
Question#11
The acid formed when propyl magnesium bromide is treated with carbon dioxide is [CPMT 1982, 84, 86; Pb. PMT 1998]
Question#12
\( (CH_3)_2CO \xrightarrow[KCN]{HCl} A \xrightarrow[H3O+]{\Delta} B \) In the above sequence of reactions A and B are [CPMT 2000]
Question#13
Which of the following gives benzoic acid on oxidation [CBSE PMT 1996]
Question#14
When benzyl alcohol is oxidized with , KMnO4 the product obtained is [SCRA 1991]
Question#15
Which of the following on hydrolysis forms acetic acid [BHU 1997]
Question#16
\( C_2H_2 \xrightarrow[H2SO4]{HgSO4} A \xrightarrow{[O]} B \) , B is [CBSE PMT 1991; BHU 1995]
Question#17
\( CO + NaOH \rightarrow ? \) [CPMT 1997; KCET 1999]
Question#18
Acetic acid is manufactured by the fermentation of [CPMT 1985]
Question#19
Acetic acid is obtained when [NCERT 1975; CPMT 1977]
Question#20
The reduction of a nitrile produced a compound of formula C3H7NH2. Which one of the following compound would be produced if the same nitrile was hydrolyzed by heating with Dil.HCl ? NUMS2016
Question#21
Hydrolysis of Alkane nitriles produces NUMS2020
Question#22
Methyl cyanide, on boiling with Mineral acids or alkalis, yield: MDCAT2013
Question#23
When CH3CH2OH is oxidized in the presence of K2Cr2O7 and H2SO4 the product formed is MDCAT2012.