Question

(iv) Which of the following are exothermic processes?
(i) Reaction of water with quick lime
(i) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of camphor (crystals)
(a) (i) and (ü)
(b) (i) and (ii)
(c) (i) and (iv)
(d) (i) and (iv)
(v) Which among the following is (are) double displacement reactions ?
(i) Pb + Cuci, → PbCl2 + Cu
(ii) Na SO4 + BaCl, BaSO, + 2NaCl
(iii) C + 02 - CO2
(iv) CH. + 202 - CO2 + 2H2O
(a) (i) and (iv)
(b) (ii) only
(c) (i) and (ii)
(d) (ii) and (iv)​

Answer 1

Answer:

4.(i) and (ii)

5.(ii) only

Answer 2

Answer:

1)

reaction of water with quick lime

2)

ii only