Calgon is

Calgon is
  1. $\mathrm{Na}_2 \mathrm{HPO}_4$
  2. $\mathrm{Na}_3 \mathrm{PO}_4$
  3. $\mathrm{Na}_6 \mathrm{P}_6 \mathrm{O}_{18}$
  4. $\mathrm{Na} \mathrm{H}_2 \mathrm{PO}_{4}$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2016

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