Please solve both questions

From the given data, what is the bond enthalpy of CL-CDon (a) 70 kCal (b) 80 kCal (d) 57.857 kCal (c) 67.75 kCal is f O water is- 285.8 kJ mol-l, If enthalny of neutralisation of monoacid Strong -57.3 kJ mo-, AH of OH ion will be (a)-228.5 kJ mol-l (b) 228.5 kJ mol- (c) 114.25 kJ molrl (d)-114.25 kJ mol ne lattice enthalpy of solid NaCI is 772 kJmol-! and enthalpy of so lution is 2 kmol 37 n enthalpy of Na* & C ions are in the ratio of 3:2.5, what is the enthalpy of hydration or chloride ion? (a)-140 kJmol-l (b)-350 kJmol- (c)-351.81 kJmol- (d) None