The numbers of protons, electrons and neutrons in a molecule of heavy water are respectively :
A.
8, 10, 11
B.
10, 10, 10
C.
10, 11, 10
D.
11, 10, 10
Answer :
10, 10, 10
Solution :
Heavy water is $${D_2}O$$ hence
number of electrons $$ = 2 + 8 = 10$$
number of protons $$ = 10$$
Atomic mass of $${D_2}O = 4 + 16 = 20$$
hence number of neutron = Atomic mass – number of protons
$$ = 20 - 10 = 10$$
Releted MCQ Question on Inorganic Chemistry >> Hydrogen
Releted Question 1
$$HCl$$ is added to following oxides. Which one would give $${H_2}{O_2}$$ ?