SO_(2) CrO_(3) SO_(3) Al_(2)O_(3) No.of compounds that acts as oxidant as well as reluctant is 0 0 0

Assertion (A): O_(3) can act as an oxidising agent as wll as a reducing agent, but SO_(2) can act only as an oxidant. Reason (R ): The oxidation number of O in O_(3) is zero, and the oxidiation number of S in SO_(2) is +4 .

Among Al_(2)O_(3),SiO_(2),P_(2)O_(5) and SO_(3) the correct order of acid strength is :-

Three different solutions of oxidising agents KMnO_(4),K_(2)Cr_(2)O_(7) " and "I_(2) is titrated separately with 0.158 gm of Na_(2)S_(2)O_(3) . If molarity of each oxidising agent is 0.1 M and reactions are : I. MnO_(4)^(-)+S_(2)O_(3)^(2-) toMnO_(2)+SO_(4)^(2-) II CrO_(7)^(2-)+S_(2)O_(3)^(2-) to Cr^(3+)+SO_(4)^(2-) III. I_(2)+S_(2)O_(3)^(2-) to S_(4)O_(6)^(2-)+I^(-)

The depression of freezing points of 0.05 molal aqueous solution of the following compounds are measured. 1. NaCl 2. K_(2)SO_(4) 3. C_(6)H_(12)O_(6) 4. Al_(2)(SO_(4))_(3) Which one of the above compounds will exhibit the maximum depression of freezing point ?

From - SO_(2), SiO_(2), Al_(2)O_(3), MgO, CO, Na_(2)O - Select an oxide which dissolves in water forming an acid

Assertion : Out of CrO_(3)& Al_(2)O_(3), CrO_(3) having lower melting point than Al_(2)O_(3) . Reason: Oxidation state of Cr in CrO_(3) is high

In Alum: K_(2)SO_(4) Al_(2)(SO_(4))_(3). 24 H_(2)O Which metal can replace Al

A reaction system in equilibrium according to reaction 2SO_(2)(g)+O_(2)(g)hArr2SO_(3)(g) in one litre vessel at a given temperature was found to be 0.12 mole each of SO_(2) and SO_(3) and 5 mole of O_(2) In another vessel of one litre contains 32 g of SO_(2) at the same temperature. What mass of O_(2) must be added to this vessel in order that at equilibrium 20% of SO_(2) is oxidized to SO_(3) ?

Na_(2)CrO_(4)+HCl to H_(2)Cr_(2)O_(7)+Na_(2)SO_(4)

Na_(2)CrO_(4)+HCl to H_(2)Cr_(2)O_(7)+Na_(2)SO_(4)