Class 11th
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New question posted
6 months ago
New question posted
6 months agoNew answer posted
6 months agoContributor-Level 10
This is a short answer type question as classified in NCERT Exemplar
SO3 acts as an electrophile as in this, three highly electronegative oxygen atoms are attached to the sulphur atom which makes it electron deficient. It can be shown by resonance that it gets positive charge and acts as an electrophile.
New answer posted
6 months ago
Contributor-Level 10
18. In this structure i.e., 3-nitrocyclohex-l-en (Carbon atoms of the ring are numbered in such a way that double bonded carbon gets the lowest number followed by the nitro group -NO2.
New answer posted
6 months ago
Contributor-Level 10
24. In this structure i.e., 3-ethyl, 4-methylhept-5-en-2-one. (the longest carbon chain is selected in such a way that the functional group > C = O gets the lowest possible locant.
New answer posted
6 months agoContributor-Level 10
23. Whenever an organic compound contains both N and S, then on fusion with Na metal compound gives NaSCN or NaCN and Na2S depending on the quantity of Na metal. If Na metal is less, then only NaSCN is formed. In that case L.E on treating with FeSO4 and H2SO4 gives red colour due to the formation of ferric thiocyanide Fe (SCN)3. In case of NaCN, L.E on treating with FeSO4 and H2SO4gives Prussian blue colour.
Chemical reactions: Fe2+ →Fe3+ (Oxidation)
Fe3+ + 3NaSCN →Fe (SCN)3 + 3Na+
&nb
New answer posted
6 months agoContributor-Level 10
22. Four possible carbocations can be obtained from 2- methyl butane are
Generally, order of stability follows the order-
1° carbocation < 2 carbocation < 3 carbocation
Order of increasing stability of the given structures is-
I < IV < II < III.
New answer posted
6 months ago
Contributor-Level 10
21. Triphenylmethyl cation is found to be very much stable as this positive charge on methyl carbon is delocalized in three phenyl rings. In each phenyl ring, positive charge is developed on 2 ortho position and para position, i.e., three resonating structures. Total resonating structures given by triphenylmethyl cation are nine. Hence, it is very stable. These structures can be shown as.
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