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In the following sequence of reactions, what are suitable for (A) and (B) when (D) is 1 - phenyl propan - 1 - one. $ A + B \rightarrow C \rightarrow D + Mg(NH_2)Br $
Inter molecular hydrogen bonding is strongest in
Intermolecular hydrogen bonding is strongest in methanol compared to methylamine, phenol, and methanal. This is because methanol (CH3OH) has a hydroxyl group (-OH) which can form strong hydrogen bonds with other methanol molecules. The oxygen atom in the hydroxyl group is highly electronegative and can attract hydrogen atoms from neighboring molecules, forming strong hydrogen bonds.
Among the following dissociation constant is highest for
$ CH_3 NH_3 ^+ Cl ^ -$ being asalt, undergoes almostcomplete dissociation, therefore, it has ahigh dissociation constant.
Each question given below contains statement - 1 (Assertion) and Statement - 2 (Reason). Each queastion has 4 choices (1), (2), (3) and (4). out of which only one is correct choose the correct option as under : Statement - 1: Aniline is less basic than P - toludine. Statement - 2: P- toludine is more basic than Aniline due to electron donating group - $CH_3$ .
Aniline (C6H5NH2) is indeed less basic than p-toluidine (C6H4CH3NH2). The methyl group (-CH3) in p-toluidine is an electron-donating group that increases the electron density on the nitrogen atom, making it more willing to donate a pair of electrons. This increased electron density makes p-toluidine more basic compared to aniline. Both statements are true, and the reason provided in Statement 2 correctly explains Statement 1.
Each question given below contains statement - 1 (Assertion) and Statement - 2 (Reason). Each queastion has 4 choices (1), (2), (3) and (4). out of which only one is correct choose the correct option as under : Statement - 1: Primary aliphatic amine forms highly stable alkyldiazonium salt. Statement - 2: Benzenediazonium chloride is easily soluble in water while Benzenediazonium fluoroborateis insolubel in water.
Primary aliphatic amines do not form highly stable alkyldiazonium salts. These salts are generally unstable and decompose easily, unlike aromatic diazonium salts, which are more stable. Statement 1 is false. Statement 2 is true because benzenediazonium chloride is soluble in water due to its ionic nature, while benzenediazonium fluoroborate is insoluble in water due to the presence of the large and less polarizable BF4- anion.
Each question given below contains statement - 1 (Assertion) and Statement - 2 (Reason). Each queastion has 4 choices (1), (2), (3) and (4). out of which only one is correct choose the correct option as under : Statement - 1: Aniline is a weaker base than ammonia. Statement - 2: Aniline is resonance stabilized
Each question given below contains statement - 1 (Assertion) and Statement - 2 (Reason). Each queastion has 4 choices (1), (2), (3) and (4). out of which only one is correct choose the correct option as under : Statement - 1: P - nitro anline is a weaker base than p-toludine Statement - 2: The electron with drawing - $ NO_2 $ group in P-nitroaniline makes it a stronger base.
Statement 1 is true because p-nitroaniline is indeed a weaker base than p-toluidine due to the electron-withdrawing nature of the nitro group. Statement 2 is false because the electron-withdrawing -NO2 group actually makes p-nitroaniline a weaker base, not a stronger base.
Each question given below contains statement - 1 (Assertion) and Statement - 2 (Reason). Each queastion has 4 choices (1), (2), (3) and (4). out of which only one is correct choose the correct option as under : Statement - 1: "Benzonitrile can not be prepared by nucleophilic substitution of benzene". Statement - 2: " Benzonitrile can be easily prepared via diazonium salt".
Statement 1 is true because benzonitrile cannot be prepared by nucleophilic substitution of benzene due to the lack of a good leaving group on benzene. Statement 2 is also true because benzonitrile can be easily prepared via diazonium salt. However, Statement 2 is not a correct explanation for Statement 1, as the preparation method via diazonium salt is a separate fact and does not explain the inability to prepare benzonitrile via nucleophilic substitution of benzene.
Each question given below contains statement - 1 (Assertion) and Statement - 2 (Reason). Each queastion has 4 choices (1), (2), (3) and (4). out of which only one is correct choose the correct option as under : Statement - 1: " Carboxylic acids are obtained by hydrolysis of Cyanide compounds in presence of sulphyric acid and ammonia is liberated." Statement - 2: " Primary amine is obtained by reduction of cyanide compound in presence of $ LiAlH_4 $ ."
Statement 1 is true because carboxylic acids are obtained by the hydrolysis of cyanide compounds, and ammonia is liberated in the process. Statement 2 is also true because primary amines are obtained by the reduction of cyanide compounds in the presence of $LiAlH_4$. However, Statement 2 is not a correct explanation for Statement 1, as they describe two different reactions involving cyanide compounds.
Each question given below contains statement - 1 (Assertion) and Statement - 2 (Reason). Each queastion has 4 choices (1), (2), (3) and (4). out of which only one is correct choose the correct option as under : Statement - 1: "Gabriel Synthesis is used in the preparation of primary alifatic amines." Statement - 2: "Primary aromatic amine can be prepared by Gabriel synthesis's method."
Gabriel Synthesis is specifically used for the synthesis of primary aliphatic amines and not for aromatic amines. Therefore, Statement - 1 is True and Statement - 2 is False.
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