IUPAC name of the following compound is
CH3--CH2--COOH
2, 2-diethyl pentanoic acid
2, 4-dimethyl hexanoic acid
2-methyl-4-ethyl pentanoic acid
4-ethyl-2-methyl pentanoic acid
The structural formula of 2-methyl-2-butene is
CH3-CH(CH3)-CH=CH2
CH3-CH2-C(CH3)=CH2
CH3-CH=CH-CH3
CH3-CH=C(CH3)-CH3
Which one of the following pairs of compounds are functional isomers?
CH3CH2CH2OH, (CH3)2CHCH2OH
CH3CH2CH2CH2OH, (CH3)2CHCH2OH
CH3CH2CH2OH, CH3CH2CH2Cl
CH3CH2CH2OH, CH3-O-CH2CH3
Dehydrohalogenation of an alkyl halide is a/an
nucleophilic substitution reaction
elimination reaction
both nucleophilic substitution and elimination reaction
rearrangement
B.
elimination reaction
(i) In nucleophilic substitution reaction more powerful nucleophile replaces weaker nucleophile.
(ii) In rearrangement reaction atoms replace their position within molecule.
(iii) In elimination reaction small molecules (e.g., H2O), NH3) are lost.
∴ KCl and H2O molecules are lost during reaction.
Therefore, It is an elimination reaction.
The correct structure of 4-bromo-3-methyl but-1-ene is
Br-CH=C(CH3)2
CH2=CH-CH(CH3)-CH2Br
CH2=C(CH3)CH2Br
CH3-C(CH3)=CHCH2-Br
Which of the following reaction can produce aniline as main product?
C6H5NO2 + Zn/ KOH
C6H5NO2 + Zn/ NH4Cl
C6H5NO2 + LiAlH4
C6H5NO2 + Zn/ HCl
Which of the following is a pair of functional isomers?
CH3COCH3, CH3CHO
C2H5CO2H, CH3CO2CH3
C2H5CO2H, CHCO2C2H5
CH3CO2H, CH3CHO
Which of the following reacts with benzene in presence of anhydrous aluminum chloride and forms acetophenone ?
CH3Cl
CH3COOH
CH3CHO
CH3COCl
Which of the following reactions does not liberate gaseous product ?
AlCl3 + NaOH →
NaOH + P(white) + H2O →
Al + NaOH
Zn + NaOH
CH3CH2OH CH3CHO Cl3CCHO
In the above reaction, the role of Cl2 in Step-1 and Step-2 respectively is:
oxidation, chlorination
reduction, chlorination
oxidation, addition
reduction,substitution