निम्नलिखित अभिक्रियाओं में ऑक्सीकृत, अपचयित, ऑक्सीकारक तथा अपचायक पदार्थ पहचानिए -
`HCHO(l)+2Cu^(+2)(aq)+5OH^(-)(aq)toCu_(2)O(s)+HCOO^(-)(aq)+3H_(2)O(l)`

Identify the substance oxidised substance reduced, oxidising agent, and reducing agent for each of the following reactions: a. 2AgBr(s) + C_(6)H_(6)O_(2)(aq) rarr2Ag(s) + 2HBr(aq) + C_(6)H_(4)O_(2)(aq) b. HCHO(l) + 2[Ag(NH_(3))_(3)]^(o+) + 3 overset(Θ)(OH)(aq) rarr 2Ag(s) + HCOO^(Θ)(aq) + 4NH_(3)(aq) + 2H_(2)O(l) c. HCHO(l)+ 2Cu^(2+)(aq) + 5overset(Θ)(OH) (aq) rarr Cu_(2)O(s)+ HCOO^(Θ)(aq) + 3H_(2)O(l) d. N_(2)H_(4)(l) + 2H_(2)O_(2)(l) rarrN_(2)(g) + 4H_(2)O(l) d. Pb(s) + PbO_(2)(s) + 2H_(2)SO_(4)(aq) rarr 2PbSO_(4)(s)+2H_(2)O(l)

Complete the chemical equations : MnO_4^(-) (aq) + S_2O_3^(2-)(aq) + H_2O (l) to

The heat liberated in the following reaction H^(+)(aq)+OH^(-)(aq) to H_(2)O(l) is

The heat liberated in the following reaction H^(+)(aq)+OH^(-)(aq) to H_(2)O(l) is

Identify the substance oxidised, reduced, oxidising agent and reducing agent for each of the following reactions : HCHO(l) + 2Cu^(2+) (aq) + 5OH^- (aq) rarr Cu_2O(s) + HCOO^- (aq) + 3H_2O(l)

To calculate K_(W) of water H_(2)O(l)+H_(2)O_(l)toH_(2)O^(+)(aq)+OH^(-)(aq)

Identify the substance oxidised and reduced, oxidising agent and reducing agent for each of the following reactions (a) 2AgBr(s)toC_(6)H_(6)O_(2)(aq)to2Ag(s)+2HBr(aq)+C_(6)H_(4)O_(2)(aq) (b) HCHO(l)+2[Ag(NH_(3))_(2)]^(+)(aq)+3OH^(-)(aq)to2Ag(s)+HCOO^(-)(aq)+4NH_(3)(aq)+2H_(2)O(l) (c ) HCHO(l)+2Cu^(2+)(aq)+5OH^(-)(aq)toCu_(2)O(s)+HCOO^(-)(aq)+3H_(2)O(l) (d) N_(2)H_(4)(l)+2H_(2)O_(2)(l)toN_(2)(g)+4H_(2)O(l) Pb(s)+PbO_(2)(s)+2H_(2)SO_(4)(aq)to2PbSO_(4)(s)+2H_(2)O(l)