Question

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 solutions

contained in beakers 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 beakers A and B, 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:

c) (I) and (iv) is the correct answer

Answer 2

Answer:

c) (i) and (iv)

Explanation:

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