How many 1∘,2∘ and 3∘ H atoms are present in ( Toluene ) respectively.
How many atoms are present in the following? [5 MARKS] 1. H2O2 2. H3PO4 3. CO2−3 4. C12H22O11 5. H2SO4
How many atoms are present in the following? [5 MARKS] 1. H2S 2. PO3−4 ion 3. CO 4. C6H12O6 5. SO4
How many atoms are present in a
(i) H2S molecule and
(ii) PO43− ion?