I. The boiling points of hydrides of group 16 are in the ordera) H2O > H2Te > H2S > H2Se b) H2O > H2S > H2Se > H2Hec) H2O > H2Te > H2Se > H2S d) None of theseii. Affinity for hydrogen decreases in the group from fluorine to iodine. What of the halogen acids should have highest bond dissociation enthalpy? a) HF b) HCl c) H Br d) HIiii. If cone, of reactant 'A' is increased 10 times and rate of reaction becomes 100 times. What is order to 'A'?a) 1 b) 2 c) 3 d) 4iv. The half life period of first order reaction is 1386 seconds. The specific rate constant of the reactions is.a) 0.5x10-2s-1 b) 0.5x10-3s-1 c) 5.0x10-2s-1 d) 5.0x10-3s-1v. The change required for the reductions of 1 mol of MnO2-to MnO2 is a) 1 F b) 3 F c) 5 F d) 6 Fvi. Which of the following statement is correct? a) E cell and of cell reaction both are extensive properties.b) E cell and of cell reaction both are intensive propertiesc) E cell is an intensive property while of cell reaction is an extensive property.d) E cell is an extensive property while of cell reaction is an intensive property. ​