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Q. Explain about Dihalide?
Dihalides: Dichlorides and dibromides are formed by the lower members of the group, viz., Se, Te and Po. These are formed mainly by dissociation of the corresponding tetrahalides. Sulphur dichloride can also be formed by chlorination of S2Cl2 preferably, in presence of a trace of a catalyst such as FeCl,. However, due to the decomposition of S2CI2, into S2Cl2, it is rather unstable. While the dihalides of Se are gaseous, those of Te and Po are solids. These dihalides are hydrolysed by H2O2 according to following equation for TeBr2.
2TeBr2 + 3H2O ---------------> H2TeO3+ 4HBr + Te
Dissolution of chlorine in sulphur monochloride, S2Cl2 gives sulphur dichloride, 9CI2, an unstable liquid which dissociates back.
Calculation of empirical formula The steps included in the calculation are as follows, (a) Divide the percentage (%) of each element by its atomic volume. This gives th
Chemical Properties of Alkyl Halides The alkyl halides are very reactive; the sequence of reactivity is as follow: Iodide > Bromide > Chloride (Nature of the hal
With which of the given pairs CO 2 resembles: (1) HgCl 2 , C2H 2 (2) HgCl 2 , SnCl 4 (3) C 2 H 2 , NO 2 (4) N 2 O and NO 2
rectivtiy of gillman reagent on cyclic alkyl halides is govern by what factors,,what is the product bicyclo[2,2,1] dibromide reacts with gillman reagent
ALKALI AND ALKALINE EARTH METALS FORM ONLY 1+ AND 2+ IONS RESPECTIVELY.EXPLAIN
1000
Indicate whether the following thermal reactions are allowed concerted reactions by the Woodward-Hoffmann criteria. Classify the reaction according to type. On the basis of
balance?
Which is the most covalent: (1) C- O (2) C- Br (3) C- S (4) C-F A
please provide tests in a tabular form
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