Chemistry
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New answer posted
10 months agoContributor-Level 10
In Monoclinic crystal system, a ≠ b ≠ c and α = 90°, γ = 90° and β=120°.
New answer posted
10 months ago
Contributor-Level 9
[Reaction of an α, β-unsaturated ketone with ethyl magnesium bromide (Grignard reagent) followed by hydrolysis to give a tertiary alcohol via 1,2-addition.]
New answer posted
10 months ago
Contributor-Level 10
(a) Furacin → Antiseptic
(b) Arsphenamine → Antibiotic
(c) Dimetone → Synthetic antihistamines
(d) Valium → Tranquilizers
New answer posted
10 months agoContributor-Level 9
[SiCl?]?² is not known because six larger chloride ions can't be accomodated around Si? due to its small size.
New answer posted
10 months agoContributor-Level 9
C? H? → possible structure of C? H? are; CH? -C (CH? )=CH? and CH? -CH=CH-CH?
(Unsaturation factor = 1)
Ozonolysis of CH? -C (CH? )=CH? gives acetone (B) and formaldehyde.
Oxidation of CH? -C (CH? )=CH? with KMnO? /H? gives acetone (B) and CO?
The question states it gives C? H? O (B). Hence the alkene is 2-Methylpropene (A).
[Reaction scheme showing ozonolysis and permanganate oxidation of 2-methylpropene]
New answer posted
10 months ago
Contributor-Level 10
All carbonyl compound (aldehyde and ketone) give orange precipitate with 2,4-dinitrophenyl hydrazine (Brady's reagent)
New answer posted
10 months agoContributor-Level 10
CrO? ²? (Cr? ) → Cr? ³, Total oxidation number change = 3
MnO? (Mn? ) → Mn? ², Total oxidation number change = 5
Cr? O? ²? (Cr? ) → 2Cr? ³, Total oxidation number change = 6
C? O? ²? (C? ³) → 2CO? (C? ), Total oxidation number change = 2
New answer posted
10 months agoContributor-Level 10
(A) [PtCl? (NH? )? ], Number of GI = 2
(B) [Ni (CO)? ], Number of G.I = 0 as it is tetrahedral.
(C) [Ru (H? O)? Cl? ] Number of G.I = 2 (Facial and Meridional)
(D) [CoCl? (NH? )? ]? Number of G.I = 2 (Cis and trans)
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