1.

Enthalpy of formation of two compounds x and y are ? 84 kJ and ? 156 kJ respectively. Which of the following statements is correct     [CBSE PMT 2001]

A.                 x is more stable than y
B.                 x is less stable than y
C.                 Both x and y are unstable
D.                 x and y are endothermic compounds
Answer» C.                 Both x and y are unstable


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