Question

$D_{2}O$ will have maximum density at :

• A. $9^{\circ }C$
• B. ${11.5}^{\circ }C$
• C. ${15.9}^{\circ }C$
• D. ${20}^{\circ }C$

Answer 1

The correct option is B ${11.5}^{\circ }C$

Heavy water $\left(D_{2}O\right)$ will have maximum density at ${11.5}^{\circ }C$.
It is about $11\%$ heavier than ordinary water.
The density of heavy water at $298K$ is $1.1059$ g/ml.