Question

Calculate number of neutrons present in.....​

Answer 1

Answer:

Number of moles present in12×10^25 atoms of oxygen => 12×10^25/6×10^23 => 200 .

Number of neutrons present in 12×10^25 atoms of oxygen => 200×9 × Avagadro's number => 1800× Avagadro's number . Hence

the option is (c). Hope it helps you.