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NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Introduction and Snapshot of Haloalkanes and Haloarenes - Study ref# 878

Introduction: The replacement of hydrogen atom(s) in a hydrocarbon, aliphatic or aromatic, by halogen atom(s) results in the formation of alkyl halide (haloalkane) and aryl halide (haloarene), respectively. Haloalkanes contain halogen ... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Introduction and Snapshot of Haloalkanes and Haloarenes - Study ref# 879

Following sections must be covered to understand the Haloalkanes and Haloarenes: 1. Classification 2. Nomenclature 3. Nature of C-X Bond 4. Methods of Preparation 5. Physical Properties 6. Chemical Reactions 7. Polyhalogen ... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Target Setup for Haloalkanes and Haloarenes - Study ref# 880

Student requires to achieve the following milestones to get better grip over Haloalkanes and Haloarenes. The milestones / targets are as follows: Starting Point: Days 0Test TypeAppear on TestTarget TestsScorePractice Test000%Chap... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9904

The order of reactivity f following alcohols with halogen acids is………… .

(a) &... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9905

Which of the following alcohols will yield the corresponding alkyl chloride on reaction with concentrated HCL at room temperature? Thinking process To solve the problem, students keep in mind that tertiary alcohol, being ... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9906

Toluene reacts with a halogen in the presence of iron (III) chloride giving ortho and para halo compounds. the reaction is

(a) &nbs... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9907

Which of the following is halogen exchange reaction? Answer: (a)Halogen exchange reactions are those reactions in which one halide replaces another. In option (a) halogen (-X) is replaced by iodine. This reaction is named as Finkelstein ... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9908

Which reagent will you use for the following reaction?

(a) &... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9909

Arrange the following compounds in increasing order of their boiling points.

(a) &n... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9910

In which of the following molecules carbon atom marked with asterisk (*) is asymmetric?

(a) &... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9911

Which of the following structures is enantiomeric with the molecule (A) given below? Answer: (a) The stereoisomers related t... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9912

The position of Br in the compound in can be classified as……… .

(a) &... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9914

Which is the correct IUPAC name for

(a) 1-bromo-2-ethylpropa... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9915

The reaction of toluene with chlorine in the presence of iron and in the absence of light yields…….. . Answer: (d) The reaction of toluene with chlorine in the presence of iron and carried out in absence of light, so t... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9916

Chloromethane on treatment with excess of ammonia yields mainly a) N, N-dimethylmethanamine b) N-dimethylmethanamine ... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9917

Molecules whose mirror image is non-superimposable over them are known as chiral. Which of the following molecules is chiral in nature? Answer: (a)Chiral /asymmetric carbon is that carbon in which carbon has formed four bonds with four di... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9918

Which of the following compounds will give racemic mixture on nucleophilic substitution by OH—ion? a) (i) b) (i), (ii) and (iii) c... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9919

Directions (Q Nos. 26-29) in the questions 26 to 29 arrnge the compounds in increasing order of rate of reaction towards nucleophilic substitution.

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9920

(a)(iii)<(ii)<(i) (b) (ii)<(iii)<(i) (c)(i)<(iii)<(ii) (d) (i)<(ii)<(iii) HINT: For this questions, the point is that electron withdrawing grou... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9921

(a) (i) <(ii) <(iii)

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9925

Which of the following compounds can be classified as aryl halides? a) b) c) d) Hint: To solve t... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9926

Aryl chlorides and bromides can be easily prepared by electrophilic substitution of arenes with chlorine and bromine respectively in the presence of Lewis acid catalysts. But why does preparation of aryl iodides requires presence of an oxidi... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9927

Why iodoform has appreciable antiseptic property? Answer: Iodoform liberates I2 when it comes in contact with skin. Aniseptic property of iodine is due to the liberation of I2 not because of iodoform itself. read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9928

Classify the following compounds s primary, secondary and tertiary halides. a) 1-bromobut -2-ene b) 4-bromopent -2-ene c) 2-bromo-2-methylp... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9929

Write the structures and names of the compounds formed when compound ‘A’ with molecular formula is treated with Cl2 in the presence of FeCl3. Answer: When compound ‘A’ with molecular formula, is treated with Cl2 in the presence of FeCl... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9930

Write down the structure and IUPAC name for neo-pentylbromide. Answer: The structure of neo-pentybromide is IUPAC name 1-bromo-2,2-dimethylpropane Common name read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9931

How do polar solvents help in the first step in SN1 mechanism? Answer: Polar solvent help in the first step in SN1 mechanism because leaving group and carbocation both are stabilised by polar solvent. polarity of a solvent depends uon the v... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9932

How will you obtain monobromo-benzene from aniline? Answer: When aniline, dissolved or suspended in cold aqueous mineral acid, is treated with sodium nitrile, a diaznium sat is formed. This diazo salt on treatment with cuprous bromide gives ... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9933

Aryl halides are extremely less reactive towards nucleophilic substitution. Predict and explain the order of reactivity of the following compounds towards nucleophilic substitution. Answer: Aryl halides are less reactive... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9934

Discuss the nature of C—X bond in the haloarenes. Answer: In haloarenes, carbon of benzene is bonded to halogen. Electronegativity of halogen is more than that of sp2 hybridised carbon of benzene ring. So, C—X bond is a polar bond. Apart ... read more

NEET - Grade 12 - Chemistry - Haloalkanes and Haloarenes - Study ref# 9935

Match the items of Column I and Column II. read more

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