Ncert Exercises & Solutions

Match the correct ionization enthalpies and electron gain enthalpies of the following elements.

	Elements		\(\Delta H_1\)	\(\Delta H_2\)	\(\Delta_{eg}H\)
(i)	Most reactive non-metal	A.	419	3051	-48
(ii)	Most reactive metal	B.	1681	3374	-328
(iii)	Least reactive element	C.	738	1451	-40
(iv)	Metal forming binary halide	D.	2372	5251	+48

Codes

	A	B	C	D
1.	ii	i	iv	iii
2.	i	ii	iii	iv
3.	i	iv	iii	ii
4.	iv	i	iii	ii