underset("black")(X(s)) overset("dil. HCl ")to Y uarr underset(NaOH)Overset(Na_(2)[Fe(CN)_(5)(NO)])toPurple solution gas Y has been allowed to react with following species in neutral/acidic medium: (a) FeCl_(3) (b) CuSO_(4) (c) BaCl_(2) (d) SO_(2) (e) Cr_(2)O_(7)^(2-) (f) CH_(3)COONa (g) Hg^(2+) Then calculate value of (P+Q-R) P: Number of specis which undregoes redox reaction with gas Y. Q: Numbe of species with which gas Y undergoes precipitation. R: Number of spceis with which gas Y produce no observable change.

underset("black")(X(s)) overset("dil. HCl ")to Y uarr underset(NaOH)Ov

1.	underset("black")(X(s)) overset("dil. HCl ")to Y uarr underset(NaOH)Overset(Na_(2)[Fe(CN)_(5)(NO)])toPurple solution gas Y has been allowed to react with following species in neutral/acidic medium: (a) FeCl_(3) (b) CuSO_(4) (c) BaCl_(2) (d) SO_(2) (e) Cr_(2)O_(7)^(2-) (f) CH_(3)COONa (g) Hg^(2+) Then calculate value of (P+Q-R) P: Number of specis which undregoes redox reaction with gas Y. Q: Numbe of species with which gas Y undergoes precipitation. R: Number of spceis with which gas Y produce no observable change.
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