Class 12th
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New answer posted
10 months agoContributor-Level 10
Compound Oxidation state of P
H? P? O? → 5
H? P? O? → 3
H? P? O? → 4
New answer posted
10 months agoContributor-Level 9
Bauxite contains SiO?, TiO? & Fe?O? as impurities. SiO? being acidic is leached with NaOH as Na?SiO?.
Al?O? + 2NaOH → 2NaAlO? + H?O
SiO? + 2NaOH → Na?SiO? + H?O
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 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
(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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