PHOSPHORUS PENTACHLORIDE,

PHOSPHORUS TRICHLORIDE,

PHOSPHORUS PENTOXIDE,

PHOSPHORUS ACID,

PHOSPHORUS TRIOXIDE,

What happens when ? (a) Ethyl bromide reacts with sodium ethoxide. (b) Ethyl alcohol is heated with conc. H_(2)SO_(4) at 413 K . (c ) The vapours of ethyl alcohol are passed over anhydrous alumina at 523K. (d) Diethyl ether is heated with phosphorus pentachloride. (e ) Ethyl iodide is heated with dry oxide. (f) Ether is heated with hydroiodic acid. (g ) Ether i sheated with conc. H_(2)SO_(4) . [See the preparation and properties of diethyl ether. ]

Phosphorus and its Compounds, Allotropes OF Phosphorus, White Phosphorus, Red Phosphorus, Black Phosphorus, Phosphine(PH3), Acids OF Phosphorus, Halides OF Phosphorus

Complete the following chemical reaction equations : (i) P_(4)+SO_(2)Cl_(2) rightarrow (ii) XeF_(4)+ H_(2)O rightarrow (b)Explain the following observations giving apporiate reasons : (i) The stability of + 5 oxidatin state decreases down the group in group 15 of the periodic table. (ii) Solid phosphorus pentachloride behaves as an ionic compound. (iii) Halogens are strong oxidizing agents.

At 473K, equilibrium constant, K_(c) for decomposition of phosphorus pentachloride, PCl_(5) is 8.3xx10^(-3) . If decomposition is depicted as : PCl_(5(g))hArrPCl_(3(g))+Cl_(2(g)),Delta_(r)H^(@)=124.0" kJ mol"^(-1) what would be the effect on reaction if the temperature is increased ?

An organic compound (A) on treatment with acetic acid in the presence of sulphuric acid produces an ester (B) . (A) on mild oxidation gives ( C), ( C) with 50 % potassium hydroxide followed by acidification with dilute hydroxide acid generates (A) and (D) ,(D) with phosphorus pentachloride followed by reaction with ammonia gives (E) , (E) on dehydration produces hydrocyanic acid. Identify the compounds (A), (B), (C), (D) , and (E) .

At 473 K , equilibrium constant K_(c ) for decomposition of phosphorus pentachloride, PCl_(5) is 8.3xx10^(-3) . If decomposition is depicted as, PCl_(5)(g) hArr PCl_(3)(g)+Cl_(2)(g) Delta_(r)H^(Θ)=124.0 kJ mol^(-1) a. Write an expression for K_(c ) for the reaction. b. What is the value of K_(c ) for the reverse reaction at the same temperature? c. What would be the effect on K_(c ) if i. More PCl_(5) is added ii. Pressure is increased iii. The temperature is increased?