Chlorobenzene and benzyl chloride can be distingulshed by boiling with aqueous KOH follwed by acidification with dil `HNO_3` and subsequent treatment with `AgNO_3` solution.

In qualitative analysis when H_2S is passed through an aqueous solution of salt acidified with dil. HCl, a black precipitate is obtained. On boiling the precipitate with dil. HNO_3 , it forms a solution of blue colour. Addition of excess of aqueous solution of ammonia to this solution gives _______ .

An aqueous solution of [Pt(NH_3)_2Cl_2] gives white precipitate of AgCl with AgNO_3(aq) .

An aqueous solution of [Pt(NH_3)_2Cl_2] gives white precipitate of AgCl with AgNO_3(aq) .

You are provided with a container made up of aluminium. You are also provided with solutions of dil HCl, dil HNO_3 , ZnCl_2 and H_2O . Out of these solutions which solution, can be kept in the aluminium container? Name the type of reactions takes place.

Predict the products of electrolysis in each of the following: An aqueous solution of AgNO_3 with silver electrodes.

Predict the products of electrolysis in each of the following: An aqueous solution of AgNO_3 with platinum electrodes.

An aqueous solution containing 1 g of urea boils at 100.25^@C . The aqueous solution containing 3 g of glucose in the same volume will boil at

Acid-base indicators are either weak organic acids or weak organic bases. Indicator change colour in dilute solution when the hydonium ion concentration reaches a particular calur For example. Phenolphthalein is a coloureless stbstance in any aqueous solution with a pH less than 8.3 In between the pH range 8.3 to 10, transition of colour (colourless to pink ) takes place and if pH of solution is greater than 10 solution is dark pink. Considering an acid indicator Hln, the equilibrium involving it and its conjgate base In^(-) can be represented as : " " underset("acidic from")(HIn)hArrH^(+)underset("basic from")(In^(-)) pH of solution can be computed as : " " pH=pK_(In)+log.([IN^(-)])/([HIn]) In general, transition of colour takes place in between the pH range pK_(In+-1. Select the correct statement (s) :

Enthalpy of neutralzation is defined as the enthalpy change when 1 mole of acid /base is completely neutralized by base // acid in dilute solution . For Strong acid and strong base neutralization net chemical change is H^(+) (aq)+OH^(-)(aq)to H_(2)O(l) Delta_(r)H^(@)=-55.84KJ//mol DeltaH_("ionization")^(@) of aqueous solution of strong acid and strong base is zero . when a dilute solution of weak acid or base is neutralized, the enthalpy of neutralization is somewhat less because of the absorption of heat in the ionzation of the because of the absorotion of heat in the ionization of the weak acid or base ,for weak acid /base DeltaH_("neutrlzation")^(@)=DeltaH_("ionization")^(@)+ Delta _(r)H^(@)(H^(+)+OH^(-)to H_(2)O) What is DeltaH^(@) for complate neutralization of strong diacidic base A(OH)_(2)by HNO_(3) ?