Question

The total numbers of atoms all elements present in mole of ammonium dichromate is:

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

Ammonium dichromate is $(N{H}_4{)}_{2}C{r}_2{O}_7$
One mole of it contains 2 moles of N atoms, 8mloes of H atoms, 2moles Cr atoms and 7 moles of O atoms
Therefore Total atoms of all elements = 2+ 8+2+7 = 19 moles