The steam volatile compounds among the following are :

$\text { Choose the correct answer from the options given below : }$

Match List - I with List - II.

List - I (Structure)	List - II (IUPAC Name)
(A)	(I) 4-Methylpent-1-ene
(B) (CH3)2C(C3H7)2	(II) 3-Ethyl-5-methylheptane
(C)	(III) 4,4-Dimethylheptane
(D)	(IV) 2-Methyl-1,3-pentadiene

Choose the correct answer from the options given below :

Total number of nucleophiles from the following is :

An element ‘E’ has the ionisation enthalpy value of 374 kJ mol⁻¹. ‘E’ reacts with elements A, B, C and D with electron gain enthalpy values of −328, −349, −325 and −295 kJ mol⁻¹, respectively. The correct order of the products EA, EB, EC and ED in terms of ionic character is :