Three beakers labelled as A,B and C each containing 25 mL of water were taken. A small amount of NaOH, anhydrous CuSO4  and NaCl were added to the beakers A, B and C respectively. It was observed that there was an increase in the temperature of the solution contained in beaker A and B, whereas in case of beaker C, the temperature of the solution falls. Which one of the following statement(s) is (are) correct? (i) In beakers A and B, exothermic process has occurred. (ii) In beaker A and B, endothermic process has occurred. (iii) In beaker C exothermic process has occurred. (iv) In beaker endothermic process has occurred
(a)	(i) only	(b)	(ii) only
(c)	(i) and (iv)	(d)	(ii) and (iii)

Question ID - 55134 | SaraNextGen Top Answer

Three beakers labelled as A,B and C each containing 25 mL of water were taken. A small amount of NaOH, anhydrous CuSO4  and NaCl were added to the beakers A, B and C respectively. It was observed that there was an increase in the temperature of the solution contained in beaker A and B, whereas in case of beaker C, the temperature of the solution falls. Which one of the following statement(s) is (are) correct? (i) In beakers A and B, exothermic process has occurred. (ii) In beaker A and B, endothermic process has occurred. (iii) In beaker C exothermic process has occurred. (iv) In beaker endothermic process has occurred
(a)	(i) only	(b)	(ii) only
(c)	(i) and (iv)	(d)	(ii) and (iii)