Se_(2)Cl_(2)Delta longrightarrow SeCl_(4)+Se

Se_(2)Cl_(2)overset(Delta)toSeCl_(4)+Se

Se_(2)Cl_(2)overset(Delta)toSeCl_(4)+Se

Se_(2)Cl_(2)overset(Delta)toSeCl_(4)+Se

Cl_(2)+NaOH cold / dil longrightarrow A+ Nacl +H_(2) Cl_(2)+NaoH hot / conc longrightarrow B+Nacl+H_(2) of oxidation numbers of chlorine in A and B is

[Se(H_2 O)_6]^(3+) ion is

Identify the correct statements from the following . (i) Oxygen shows -2,-1,+1 and +2 oxidation states. (ii) The thermal stability of H_(2)O, H_(2)Se and H_(2)S follows the order H_(2)O ltH_(2)S lt H_(2)Se. (iii) The reducing nature of H_(2)Se,H_(2)S and H_(2) Te follows the order H_(2)S ltH_(2)Se ltH_(2)Te