c) After adding ( mathrm{NaOH} ) to ( mathrm{NH}_{4} mathrm{CI} ), show why litmus paper turns to blue by writing reaction between ( mathrm{NaOH} ) and ( mathrm{NH}_{4} mathrm{CI} ). (15pts) Conclusion (10pts): Explain why ( mathrm{Na}^{+}, mathrm{K}^{+} )and ( mathrm{Ba}^{2+} ) are colorful while performing flame experiment.

c) After adding NaOH to NH4Cl, show why litmus paper tums to blue by writing reaction between NaOH and NH4Cl. (15pts) Conclusion (10pts): Explain why Na+,K+and Ba2+ are colorful while performing flame experiment