Organic Compounds Containing Halogens — practice questions
133 curated practice questions from Organic Compounds Containing Halogens (Chemistry JEE Main, NTA Exams) — 38 medium, 94 easy, 1 hard. Every question includes the final answer free; step-by-step worked solutions with a free account.
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: Rate of…
- The major product obtained when this alkyl halide is subjected to E 2 – reaction will be
- array l (P) (Q) (R) (S) array The correct order of stability of the above compounds is
- The major product formed in the following reaction is
- The decreasing order of reactivity of HX in the reaction ROH + HX → RX + H 2 O
- The product B of the following sequence, would be array l I III II IV array
- array l (P) (Q) (R) (S) array Arrange the following in the decreasing order of S N 2 reaction:
- What will be the increasing order towards S N 1 reaction for the following ? array l (P) (Q) (R) (S) array
- In S N 1 reaction, the racemization takes place. It is due to
- Given below are two statements: Statement I: High concentration of strong nucleophilic reagent with secondary alkyl…
- The major product of the following reaction is: (JEE Main 2022)
- Which of the following reactions is a good way to prepare methyl tert–butyl ether ?
- In addition - elimination pathway of nucleophilic aromatic substitutions, a–NO 2 group is
- Identify the major product Y:
- In addition-elimination pathway of nucleophilic aromatic substitutions, which of the following compounds is most…
- Which of the following statements is true about the following two anionic molecules in polar protic solvent? array l I…
- Which among the following halide/s will not show S N 1 reaction: (Jee Main 2024) (a ) H 2 C = CH – CH 2 Cl (b ) CH _ 3…
- The products obtained when this substrate is subjected to E 2 reaction will be
- Among these nucleophiles, which of the following orders is correct for their nucleophilicity order in gas phase ? CH _…
- P should be
- Total number of isomers (including stereoisomers) obtained on monochlorination of methylcyclohexane is ________. (JEE…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion…
- CH _ 3 - CH _ 2 - CH _ 2 - CH _ 2 - Br + CH _ 3 - CH _ 2 - O DMF This reaction would follow which of the following…
- Bottles containing C 6 H 5 I and C 6 H 5 CH 2 I lost their original labels. They were labelled ‘A’ and ‘B’ for testing…
- Which of the following will undergo fastest elimination with alcoholic KOH?
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: Aryl…
- For the reaction RCH _ 2 Br + I ^ - RCH CH _ 2 I + Br ^ - The correct statement is (Jee Main 2023)
- The major product obtained when this alkyl halide is subjected to E 2 reaction will be
- CH _ 3 - CH _ 2 - CH _ 2 - Br + I [ DMSO ] This reaction would follow which of the following pathway predominantly?
- Decreasing order towards S_ N 1 reaction for the following compounds is: array l (a) (b) (c) (d) array (Jee Main 2023)
- In the above reaction Hoffman product is major when base is:
- The correct order of melting point of dichlorobenzenes is (Jee Main 2023)
- Corey-House synthesis is a much more convenient method for making alkanes for which of the following reasons ?
- obtained by chlorination of n-butane will be :
- Identify the correct set of reagents or reaction conditions 'X' and 'Y' in the following set of transformation. (Jee…
- The less reactivity of chlorine atom in CH _ 2 = CH - Cl is due to
- Silver acetate + Br _ 2 CS _ 2 . The main product of this reaction is
- Which of the following products will be major if this substrate is subjected to E 2 reaction?
- array l (P) (Q) (R) (S) array Arrange the following in the decreasing order of their rate of Nucleophilic substitution.
- R - X + NaOH ROH + NaX The above reaction is classified as
- Where Nu = Nucleophile Find out the correct statement from the options given below for the above 2 reactions. (Jee Main…
- Arrange the following in decreasing order of S N 2 reaction (P) CH 3 Cl (Q) CH 3 CH 2 Cl (R) CH 3 CH 2 CH 2 Cl (S) CH _…
- Alkyl halide is converted into alkyl isocyanide by reaction with (Jee Main 2024)
- Which of the following combinations of reactants is better for making neopentane ?
- The major product of the following reaction contains ____ bromine atom(s). (JEE Main 2022)
- In the following halogenated organic compounds the one with maximum number of chlorine atoms in its structure is : (Jee…
- What is the major product of the reaction sequence?
- The major product obtained when this substrate is subjected to E 2 reaction will be
- The graph which represents the following reaction is : ( C _ 6 H _ 5 )_ 3 C - Cl [ Brthen ] OH ( C _ 6 H _ 5 )_ 3 C …
- Arrange the following in decreasing order of reactivity towards S N 1 reaction array l (P) CH _ 3 - Cl (Q) (R) (S) array
- array l (P) (Q) array array l (R) (S) array The order of fastest S N 1 reaction will be
- P should be
- Choose the halogen which is most reactive towards S_ N 1 reaction in the given compounds (A, B, C and D) (Jee Main 2023)
- A sample of chloroform being used as anaesthetic is tested by
- CCl 4 cannot give precipitate with AgNO 3 due to
- The following transformation proceeds through
- The major product obtained on treatment of CH 3 CH 2 CH(F)CH 3 with CH 3 O – / CH 3 OH is
- In the above reaction, maximum Saytzeff product will be obtained where ‘X’ is:
- Which of the following reaction is called Wurtz-Fittig reaction ?
- array l (P) (Q) (R) (S) array
- Match List I with List II. 1 - Bromopropane is reacted with reagents in List I to give product in List II. List I –…
- 2-bromopentane is heated with potassium ethoxide in ethanol. The major product obtained is
- Which one of the following compounds is inactive towards S N 1 reaction? (JEE Main 2022)
- Statement “Ozone in atmosphere is decreased by chloro-fluoro-carbon CF _ 2 Cl _ 2 ”
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: Vinyl…
- C H _ 3 , ~N H _ 2 , O H , ~F Among these nucleophiles, which of the following orders is correct for their…
- Choose the correct major product of the reaction:
- Given below are two statements: Statement I: S N 2 reactions are 'stereospecific', indicating that they result in the…
- C _ 3 H _ 8 + Cl _ 2 Light C _ 3 H _ 7 Cl + HCl is an example of which of the following types of reactions ?
- If tert -butyl bromide and NaNH 2 reacts, the product formed is
- Which of the following is an example of an S N 2 reaction?
- In the above reaction product, B is: (JEE Main 2022)
- Which among the following compounds will undergo fastest S N 2 reaction. (Jee Main 2024)
- This reaction would follow which of the following pathway predominantly?
- The order of reactivities of the following alkyl halides for a S N 2 reaction is:
- Identify the correct statement for the below given transformation. (JEE Main 2022)
- The two optical isomers given below, namely array l array
- P should be
- The major product obtained when this alkyl halide is subjected to E 2 reaction will be
- Rate of S N 1 reaction is: (P) (Q) (R) (S)
- Which one of the following is most reactive towards nucleophilic substitution ?
- Which of the following reagents could be used to convert cyclohexanol to chlorocyclohexane ?
- Given below are two statement one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- Major product of the following reaction is:
- Identify the correct order of reactivity for the following pairs towards the respective mechanism. (A) (B) (C)…
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion…
- The addition of the Grignard reagent, CH 3 MgBr to acetaldehyde is a nucleophilic addition to the carbonyl group. The…
- Which pathway does this reaction predominantly follow?
- This reaction follows
- When the concentration of alkyl halide is tripled and concentration of O H is reduced to half, the rate of S N 2…
- Identify product B formed in the reaction. Cl - ( CH _ 2 )_ 4 - Cl excess NH _ 3 ~A NaOH B + H 2 O + NaCl (Jee Main…
- Match List I with List II List I List II (A) I. Fitting reaction (B) II. Wurtz Fitting reaction (C) III. Finkelstein…
- F , C l, Br , I Among these nucleophiles, which of the following orders is correct for their nucleophilicity order in…
- Which of the following is the incorrect statement regarding the following four alkyl halides? array l (I) (II) (III)…
- S N 1 competes with E 1 and S N 2 competes with E 2 . This is because
- Predict the major product of the reaction
- Ethylene dichloride and ethylidene chloride are isomeric compounds. The false statement about these isomers is that they
- The increasing order of reactivity of the following bromides in S N 1 reaction is array l (I) (II) (III) (IV) array
- Iodine from iodoethane can be substituted by cyanide group in a number of ways. Which of the following is true…
- The correct order of nucleophilicity is (JEE Main 2022)
- Identify the incorrect option from the following: (Jee Main 2023)
- In the following reaction find the correct product :
- In the given reaction (JEE Main 2022) ‘A’ can be
- Assertion A: Hydrolysis of an alkyl chloride is a slow reaction but in the presence of NaI , the rate of the hydrolysis…
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: Ethyl…
- The correct statement regarding nucleophilic substitution reaction in a chiral alkyl halide is; (Jee Main 2024)
- The decreasing order of S N 1 reaction will be
- Which of the following is true about freons? (Jee Main 2023)
- Find the major product of the following reaction
- Arrange the following halides in the decreasing order of S N 1 reactivity (I) CH 3 CH 2 CH 2 Cl (II) CH 2 = CHCH(Cl)CH…
- Among these compounds, which one has shortest C—Cl bond ?
- Arrange the following halides in decreasing order of reactivity in S N 1 reaction (I) (II) (III) (IV)
- Which of the following reactions is best suited for synthesising the above ether ?
- F , Cl , Br , I Among these nucleophiles, which of the following orders is correct for their nucleophilicity order in…
- Chloroform for anesthetic purposes is tested for its purity with the reagent
- CH _ 3 - CH _ 2 - CH _ 2 - Br + CH _ 3 - CH _ 2 - Br [ ether ] Na P P is :
- The major product obtained when this substrate is subjected to E 1 reaction will be:
- Considering the below reactions, the compound 'A' and compound 'B' respectively are : (JEE Main 2022) (Major Product) A…
- The major product obtained when this alkyl halide is subjected to E 2 reaction under the treatment of potassium…
- Find the major product of the reaction:
- An halide C 5 H 11 Br on treatment with alc. KOH give 2-pentene only. The halide will be:
- The correct order of reactivity of following haloarenes towards nucleophilic substitution with aqueous NaOH is (Jee…
- In the above reaction product 'P' is (Jee Main 2024)
- An alkyl bromide (X) reacts with Na to form 4, 5-diethyloctane. Compound X is
- Which of the following has the fastest rate of the reaction with NaOC 2 H 5 ?
- Which of the following compounds is not suitable solvent for Grignard reagent ?
- Which of the following combinations of reactants is better for making propane ?
- Among the following, the one which reacts most readily with ethanol is
- When CH 3 CH 2 CHCl 2 is treated with NaNH 2 the product formed is
- Increasing order of S N 1 reaction will be
- Which of the following cannot be obtained as the only product in the Wurtz’s coupling reaction of halides with sodium…
- The following reaction is known as C _ 2 H _ 5 OH + SOCl _ 2 Pyridine C _ 2 H _ 5 Cl + SO _ 2 + HCl
- The major alkene obtained when this alkyl halide is subjected to E 1 reaction will be