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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.
I have the following reactions (1)NaOH+CO2+M=NaHCO3+M, K1 (2)NaHCO3+H=Na+H2CO3, K2 (3)2NaHCO3+M=(NaHCO3)2+M, K3 ki''s are the rate constants. Suppose NaHCO3 is a dominating constit
Mechanism of reduction (b)
process of metallurgy
factors that effect the solubility of a solute The solubility of a solute is effected by three factors like 1) Nature of solute 2) Nature of solvent 3) Temperature Nature
Q. Name the health benefit of soya protein? Soya protein reduces cholesterol levels in hypercholesterolemic individuals.
why we take carbon 12 as standard?
Covalent compounds are generally ...... in water: (1) Soluble (2) Insoluble (3) Dissociated (4) Hydrolysed Ans:
The energy required to dislodge electron from excited isolated H-atom, IE 1 = 13.6 eV is: (1) = 13.6eV (2) > 13.6eV (3) 3.4 eV
A covalent bond between two atoms is formed by which of the following: (1) Electron nuclear attraction (2) Electron sharing (3) Electron transfer (
sketch of a polarographic current potential curve
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