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Account for the following:
Zinc is a comparatively a soft metal, iron and chromium are typically hard.
Concept: Concept of Group 15 Elements
What happens when reactions:
N-ethylethanamine reacts with benzenesulphonyl chloride.
Concept: Methods of Preparation of Phenols
What happens when reactions:
Benzylchloride is treated with ammonia followed by the reaction with Chloromethane.
Concept: p-Block elements of Group 15 Elements >> Ammonia
The major product of acid catalysed dehydration of 1-methylcyclohexanol is ______.
Concept: Methods of Preparation of Alcohols
Given below are two statements labelled as Assertion (A) and Reason (R).
Assertion (A): An ether is more volatile than an alcohol of comparable molecular mass
Reason (R): Ethers are polar in nature.
Select the most appropriate answer from the options given below:
Concept: Physical Properties of Ethers
Name the suitable alcohol and reagent, from which 2-Chloro-2-methyl propane can be prepared.
Concept: Preparation of Ethers
Write the equations for the following reaction:
Tert butyl chloride is treated with sodium ethoxide.
Concept: Preparation of Ethers
Write the equations for the following reaction:
Phenol is treated with chloroform in the presence of NaOH
Concept: Chemical Properties of Phenol
Arrange the following in the increasing order of their property indicated:
4-Nitrobenzoic acid, benzoic acid, 3,4-Dinitrobenzoic acid, 4-Methoxy benzoic acid (Acid strength)
Concept: Chemical Reactions of Alcohols and Phenols >> Reactions Involving Cleavage of O-H Bond
Which of the following reactions are feasible?
Concept: Preparation of Ethers
Write the equation for the following:
Reaction of chlorobenzene with CH3Cl/anhyd. AlCl3.
Concept: Chemical Reaction of Ethers - Electrophilic Substitution
Which of the following observation is shown by 2-phenyl ethanol with Lucas Reagent?
Concept: Chemical Reactions of Alcohols and Phenols >> Reactions Involving Cleavage of Carbon–Oxygen (C–O) Bond in Alcohols
Anisole undergoes bromination with bromine in ethanoic acid even in the absence of iron (III) bromide catalyst.
Concept: Chemical Reaction of Ethers - Electrophilic Substitution
Assertion (A): Alcohols react both as nucleophiles and electrophiles.
Reason (R): The bond between C–O is broken when alcohols react as nucleophiles.
Select the most appropriate answer from the options given below:
Concept: Physical and Chemical Properties of Alcohols and Phenols
Write the name of the reaction, structure and IUPAC name of the product formed when:
Phenol reacts with CHCl3 in the presence of NaOH followed by hydrolysis.
Concept: Chemical Properties of Phenol
Write the name of the reaction, structure and IUPAC name of the product formed when:
\[\ce{CH3CH2CH(CH3)CH(CH3) ONa}\] reacts with \[\ce{C2H5Br}\]
Concept: Preparation of Ethers
Write the structure of 3-methyl butanal
Concept: Aldehydes and Ketones >> Nomenclature of Aldehydes and Ketones
How will you bring about the following conversions?
Propanone to propane
Concept: Aldehydes and Ketones >> Chemical Reactions of Aldehydes and Ketones - Reduction
Although phenoxide ion has more number of resonating structures than carboxylate ion, carboxylic acid is a stronger acid than phenol. Give two reasons.
Concept: Acids >> Chemical Reactions of Carboxylic Acids - Reactions Involving Cleavege of O-H Bond
Complete the following reactions:
Concept: Aldehydes and Ketones >> Chemical Reactions of Aldehydes and Ketones - Other Reactions
