Recently Active Organic Chemistry Questions

*Image* Out of following which is most reactive towards electrophilic substitution reaction? USE UR MAGNIFIERS PLZZZZZZZZZ ...

1. Statement-I : Benzoic acid is a weaker acid than formic acid Statement-II : Phenyl group when attached to carbonyl group becomes electron donating. 2. Statement-I : Pb4+ can be reduced rasily to Pb2+ Statement-II : Pb2+ is ...

1..WHICH CONFORMATION OF ETHYLENE GLYCOL IS MOST STABLE; (1)STAGGERED (2)GAUCHE (3)ANTI (4)ECLIPSED ...

hey guys i am doing arihant organic and want to know whether we have to do CHAPTER 19 (CYCLOALKANES) is it is syallabus ????of jee also do we have to do reactions of urea /.???(in chapter derivatives of -COOH )????? ...

CCl4 is resistant to hydrolysis,but SiCl4 is hydrolysed ...

1. Which of the following is least alkline *Image* 2. Formic acid when heated with H2SO4 gives (A) (COOH)2 (B) CH3COOH (C) C2H5OH (D) CO 3. Reaction H+ + OH– → H2O is— a) Very slow b) Slow c) fast d) Moderate 4. In DNA ...

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*Image* I think the ans should be B) but it is not the ans. Please if any one knows tell me. ...

Q1. Which of the following isomers of dichlorocyclohexane are optically active? (a) 1,1 dichloro (b) 1,2 (cis) dichloro (c) 1,2 (trans) dichloro (d) 1,3 (cis) dichloro (e) 1,3 (trans) dichloro (f) 1,4 (cis) dichloro (g) 1,4 ( ...

An SN2 reaction at an asymmetric Carbon of a compound always gives a) An enantiomers of the substrate b) A product with opposite optical rotation c) A mixture of diastereomers d) Single stereoisomer ...

1. Which of the following statement regarding the SN1 reaction shown by alkyl halide is not correct? a) (The added nucleophile plays no kinetic role in SN1 reaction.) b) (The SN1 reaction involves the inversion of configurati ...

1. CH3 —CH—CONH2 | CH3 2. CH3 —CH2 —CH–CH2 —CH3 | COOH 3. Cl | CH3 —CH2 —C= CH–CH3 ...

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1. Phenol to toluene 2. Benzene to aniline 3. Phenol to salicyldehyde ...

ETHENE ON OXIDATION WITH O2 (IN PRESENCE OG Ag2O )GIVES A.EPOXYMETHANE B.ETHYLENE OXIDE C.OXIRANE ...

*Image* Ques1) In the above figure, Compound A has two stereoisomers, but compounds B and C exist as single compounds. Explain. Ques2) *Image* The enantiomers of 1,2-dimethylaziridine can be separated even though one of the â ...

*Image* Compare the acidities of I and II ...

Which of the following statements about an sp hybridized carbon is FALSE a) It is divalent b) It forms bonds that are linear c) It has two p orbitals d) It always forms triple bonds to carbon Correct Answer: (d) Plz give the ...

1. Cyclopropane a. Non-planar 2. Cyclobutane b. planar 3. Cyclopentane c. Least stable cyclo alkane 4. Cyclohexane d. Shows conformation ...

*Image* which of the above compound is most readily hydrated ...

To calculate order of acid strength do we need to calculate order of strength of conjugate base OR order of stability of conjugate base ? [273] ...

*Image* How many enantiomers and diastereomers are possible ? (a) 2 , 2 (b) 4, 4 (c) 4,2 (d) 2,4 Enatiomers to 2 hi hai, but dbt is with diastereomers. ...

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1.which products can be formed by the action of Na and ethyl iodide mixture ??? ...

1.Holoform test is given by a) Ethanal b) Propanone c) Butanone d) Propan-2-ol 2. Which of the following are diamagnetic? a)[Ni(H2O)6]+2 b)[Ni(CN)4]-2 c) [Zn (NH3)4]+2 d) [Co(NH3)6]+3 3. Primary, Secondary and Tertiary amine ...

PARAGRAPH–Riemer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol,ortho to the hydroxyl group. This reaction involves electrophilic aromatic substitution. This is a general method for the synt ...

Q) When a methyl as well as phenyl grps are attached to same carbon atom, which shift takes place - 1,2-methyl or 1,2-phenyl shift and why? ...

Q1: *Image* Q2: *Image* ...