Question

Three beakers labelled as A, B and C each containing 25mL of water were taken. A small amount of sodium hydroxide, anhydrous copper sulphate and sodium chloride were added to the beakers A, B & C. It was observed that there was an increase in temperature of the solutions in beakers A & B whereas in case of beaker C, the temperature of the solution falls. Which of the following statements is correct (i) In beakers A & B exothermic process has occurred (ii) In beakers A & B endothermic process has occurred (iii) In beaker C no process occurs (iv) In beaker C endothermic process has occurred

Answer 1

1 and 4 is correct hope it helps and pls mark me as brainliest !!