Civil Services OPSC OAS Mock Test Series 2025 General Science Chemistry Periodic Table

'ଓଜୋନ୍' ନାମକ ଅଣୁକୁ ନିର୍ମାଣ କରିବାକୁ କେତେ ଅକ୍ସିଜନ୍ ପରମାଣୁ ମିଳିତ ହୁଅନ୍ତି?

1
ଗୋଟିଏ
2
ଦୁଇଟି
3
ତିନିଟି
4
ଚାରିଟି
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