What is the freezing point of heavy water?

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What is the freezing point of heavy water? Answer: 3.82 °C

Heavy water (D₂O) freezes at 3.82 °C, which is slightly higher than the freezing point of normal water (0 °C). This is due to the increased mass of deuterium atoms, which alters the physical properties like freezing and boiling points.

Question context

This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.