Question

three Bakers labelled as a b and c if containing 25 ml of water well taken a small amount of NaOH, anhydrous CuSO4 and NaCl were added to the beakers A ,B ,C respectively. it was observed that there was an increase in the temperature of the solutions in beakers A and B whereas in case of speaker 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 beakers A and B and endothermic process has occurred
iii) In beaker C exothermic
process has occurred
iv) In beaker C endothermic process has occurred ​

a) i) only
b) ii) only
c) i) and iv)
d) ii) and iii)

Answer 1

Answer:

Answer will be c) i) and iv)