defence exam CRPF SI Mock Test 2020 General Science Chemistry Basic Concepts of Chemistry

CO2 માં, C અને O2 દળ દ્વારા ______ ના ગુણોત્તરમાં હાજર છે

1
1 : 8
2
8 : 1
3
8 : 3
4
3 : 8
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