Ncert Solutions Chemistry Class 11th
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11 months agoContributor-Level 10
(b) The compound contaminates the ground water and is also a suspected carcinogen.
New answer posted
11 months agoContributor-Level 10
(b) CO is highly poisonous to living beings because of its ability to block the delivery of oxygen to the organs and tissues.
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11 months agoNew answer posted
11 months agoContributor-Level 10
Alkyl halides on treatment with sodium metal in dry ethereal (free from moisture) solution give higher alkanes. This reaction is known as Wurtz reaction and is used for the preparation of higher alkanes containing even number of carbon atoms.
For preparation of alkanes containing odd number of carbon atoms, a mixture of two alkyl halides has to be used. Since two alkyl halides can react in three different ways, therefore, a mixture of three alkanes instead of the desired alkane would be formed. For example, Wurtz reaction between 1-bromopropane and 1-bromobutane gives a mixture of three alkanes i.e., hexane, heptane and octane as shown
New answer posted
11 months agoContributor-Level 10
3.46. (b) Electronegativity refers to the tendency of an atom to share electrons with another atom.
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11 months agoContributor-Level 10
Anhydrous Ferric Chloride (FeCl3) is another Lewis acid which can be used during ethylation of benzene.
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11 months agoContributor-Level 10
CH3 group is electron-donating while -NO2 group is electron-withdrawing. Therefore, maximum electron density will be in toluene, followed by benzene and least in m-dinitrobenzene. Therefore, the ease of nitration decreases in the order: toluene > benzene > m-dinitrobenzene.
New answer posted
11 months agoContributor-Level 10
(a) The typical reactions of benzene are electrophilic substitution reactions. Higher the electron-density in the benzene ring, more reactive is the compound towards thesereactions. Since NO2 is a more powerful electron-withdrawing group than Cl, therefore, more the number of nitro groups, less reactive is the compound. Thus, the overall reactivity decreases in the order:Chlorobenzene > p-nitrochlorobenzene > 2, 4-dinitrochlorobenzene
(b) Here, CH3 group is electron donating but NO2 group is electron-withdrawing. Therefore, the maximum electron-density will be in toluene, followed by p-nitrotoluene followed by p-dinitrobenzene. Thus,
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