Question
Which of the following is not true ?
A.
$${D_2}O$$ freezes at lower temperature than $${H_2}O$$
B.
Reaction between $${H_2}$$ and $$C{l_2}$$ is much faster than $${D_2}$$ and $$C{l_2}$$
C.
Ordinary water gets electrolysed more rapidly than $${D_2}O$$
D.
Bond dissociation energy of $${D_2}$$ is greater than $${H_2}$$
Answer :
$${D_2}O$$ freezes at lower temperature than $${H_2}O$$
Solution :
$${D_2}O$$ actually has higher freezing point $$\left( {{{3.8}^ \circ }C} \right)$$ than water $${H_2}O\left( {{0^ \circ }C} \right)$$