`NiCI_(2)` in the presence of dimethy1 glyoxime` (DMG)` gives a complex which precipitates in the presence of `NH_(4)OH` giving a bright red colour .
(a) Draw its structure and show `H` bonding
(b) Give the oxidation state of Ni and its hybridisation
(c ) Predict whether it is paramagnetic or dimagnetic .

When diemethyl glyoxime is added to the aqueous solution of nickel (II) chloride in presence of dilute ammonia solution, a bright red coloured precipitate is obtained . (a) Draw the structure of bright red substance . (b) Write the oxidation state of nickel in the substance and hybridisation. (c ) State whether the substance is paramagnetic or diamagnetic.

When diemethyl glyoxime is added to the aqueous solution of nickel (II) chloride in presence of dilute ammonia solution, a bright red coloured precipitate is obtained . (a) Draw the structure of bright red substance . (b) Write the oxidation state of nickel in the substance and hybridisation. (c ) State whether the substance is paramagnetic or diamagnetic.

Nickel chloride, when treated with dimethyl gyloxime in presence of ammonium hydroxide, a bright red precipitate is obtained. Answer the following: (a) Draw the structure of the complex showing H-bonds (b) Give oxidation state of nickel and its hybridization (c) Predict the magnetic behaviour of the complex

Nickel chloride, when treated with dimethyl gyloxime in presence of ammonium hydroxide, a bright red precipitate is obtained Answer the following (a) Draw the structure of the complex showing H-bonds (b) Give oxidation state of nickel and its hybridization (c) Predict the magnetic behaviour of the complex

Dimethyl glyoxime is added to alcoholic solution of NiCl2. When ammònium hydroxide is slowly added to it, a rosy red precipitate of a. complex appears. (i) give the structure of the complex showing hydrogen bonds (ii) give oxidation state and hybridisation of neutral metal ion (iii) Identify whether it is paramagnetic or diamagnetic

Dimethyl glyoxime gives a red precipitate with Ni^(2+) , which is used for its detection. To get this precipitate readily the best pH range is

Dimethyl glyoxime gives a red precipitate with Ni^(2+) , which is used for its detection. To get this precipitate readily the best pH range is

(i) An organic compound A with molecular formula C_(7)H_(8) on oxidation by chromyl chloride in the presence of C Cl_(4) gives a compound B which gives positive Tollen's test. The compound B on treatment with NaOH followed by acid hydrolysis gives two product C and D. C on oxidation gives B which on further oxidation gives D. the compound D on distillation with sodalime gives a hydrocarbon E. Below 60^(@)C , concentrated nitric acid reacts with E in the presence of concentrated sulphuric acid forming a compound F. identify the compounds A,B,C,D,E and F. (ii) Give chemical test to distinguish : Formaldehyde and acetaldehyde.