2. KCIO3 > KCI + 02 3. NaCl + F2 → _NaF + Cl2 Ag20 → Ag + O2 CaI2 CaO + MnI4 MnO2 + 5. __ - 4.

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Q: Select the best possible products for the given reaction. Don't worry about balancing. NO₂-

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Q: 7. Stillið efnajöfnurnar 1² → I + 103 H₂O + Sb₂O3 + NaIO3 → HSb(OH)6+NaIO NaIO3 + NaHSO3 → I2 +…

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Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.