Question

Which of the following are correctly matched?

$\left(a\right)D_{2}O-$ Hard water

$\left(b\right)H_{2}O-$ Heavy water

$\left(c\right)D-$ Heavy hydrogen

$\left(d\right)Ba{O}_2.8H_{2}O-$ True peroxide

• A. $a,b,c,d$ are correct
• B. $c,d$ are correct
• C. $a,b,c$ are correct
• D. $a,c,d$ are correct

Answer 1

Answer: (B)

$c,d$ are correct

$D_{2}O-$ Heavy water

$H_{2}O-$ Ordinary water

$D-$ Heavy hydrogen (As atomic mass of $D$ is higher than $H$)

$Ba{O}_2.8H_{2}O-$ True peroxide.