ऊष्माशोषी पद के समीकरणों को चुनिए

Options

A. `S^(-) (g) to S^(2-) (g)`
B. `Na^(+) (g)+Cl^(-) (g) to NaCl(s)`
C. `N(g) to N^(-) (g)`
D. `Al^(2+) (g) to Al^(3+) (g)`

Answer

A, C, D

Explanation

(acd) `(a) S^(-) (g) to S^(2-) (g), " "triangleH_(e.g.) =(+)ve`
(b) `Na^(+) (g) +Cl^(-) (g) overset(to)to Na^(+) Cl^(-) (s)" "triangleH_(I.E.)=(-)ve`
(c) `N(g) to N^(-) (g)," "triangleH_(e.g.)=(+)ve`
(d) `Al^(2+) (g) to Al^(3+) (g)," "trianglerH_(I.E.)=(+)ve`