Minimum bond length among the following is of
(1) C-H
(2) N-O
(3) O-H
(4) C-O

Which of the following has larger bond angle in the following pairs ? (a)NH_(3),PH_(3)(b)BeF_(2),BF_(3)(c )H_(2)O,CO_(2)(d)H_(2)O,H_(2)S(e)C CL_(4),C_(2)H_(2) ?

Complete the following reactions: (i) C_(2) H_(4) + O_(2) to (ii) 4Al + 3 O_(2) to

The decreasing basic order of the following is: i. PhSO_(3)^(o-) , ii. C_(2)H_(5)SO_(3)^(o-) , iii. C_(2)H_(5)COO^(o-) , iv. overset(o-)(C)N , v. overset(o-)(O)H

The decreasing basic order of the following is: i. overset(o-)(C)H_(3) , ii. overset(o-)(O)H , iii. CH_(3)COO^(o-) , iv. H_(2)O

The decreasing basic order of the following is: i. overset(o-)(C)H_(3) , ii. overset(o-)(N)H_(2) , iii. overset(o-)(O)H , iv. F^(o-)

Calculate the enthalpy of combustion for the following reaction : 2HC-= CH +5O_(2) rarr 4CO_(2) +2H_(2)O The bond energies of C-H, C-=C, O=O, C=O , and O-H bonds are 414,812, 494,707 , and 436 kJ mol^(-1) , respectively.

Compounds with carbon-carbon double bond, such as ethylene, C_(2)H_(4) , add hydrogen in a reaction called hydrogenation. C_(2)H_(4)(g)+H_(2)(g) rarr C_(2)H_(6)(g) Calculate enthalpy change for the reaction, using the following combustion data C_(2)H_(4)(g) + 3O_(2)(g) rarr 2CO_(2)(g) + 2H_(2)O(g) , Delta_("comb")H^(Θ) = -1401 kJ mol^(-1) C_(2)H_(6)(g) + 7//2O_(2)(g)rarr 2CO_(2) (g) + 3H_(2)O(l) , Delta_("comb")H^(Θ) = -1550kJ H_(2)(g) + 1//2O_(2)(g) rarr H_(2)O(l) , Delta_("comb")H^(Θ) = -286.0 kJ mol^(-1)

The decreaing basic order of the following is: i. overset(o-)(C)N , ii. overset(o-)(O)H , iii. overset(o-)(O) Me , iv. overset(o-)(C)H_(3) , v. H^(o-)

The decreasing fugacity order of the following is: i. overset(o-)(C)N , ii. overset(o-)(O)H , iii. overset(o-)(O) Me , iv. overset(o-)(C)H_(3) , v. H^(o-)

Calculate the enthalpy change (Delta H) of the following reaction 2C_(2)H_(2)(g)+5O_(2)(g)rarr4CO_(2)(g)+2H_(2)O(g) given average bond enthalpies of various bonds, i.e., C-H,C-=C,O=O,C=O,O-H as 414,814,499,724 and 640 kJ mol^(-1) respectively.