1) 2Cu + O 2 2) 4Al + 3O 2 3) 4Na + O 2 4) 4K + O 2 5) Mg + O 2 6) 2Zn + O 2 7) 3Fe + O 2 8) 2Cu + O 2 9) 4Al + 3O 2 2CuO(Black ) 2Al 2 O 3 2Na 2 O 2K.

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1) 2Cu + O 2 2) 4Al + 3O 2 3) 4Na + O 2 4) 4K + O 2 5) Mg + O 2 6) 2Zn + O 2 7) 3Fe + O 2 8) 2Cu + O 2 9) 4Al + 3O 2 2CuO(Black ) 2Al 2 O 3 2Na 2 O 2K 2 O 2MgO 2ZnO Fe 2 O 3 2CuO 2Al 2 O 3

10) Fe + S 11) C + H 2 12) H 2 O + CO 2 13) Na 2 O +H 2 O 14) K 2 O + H 2 O 15) 3CaO.Al 2 O 3 + 6H 2 O 16) KNO 3 + H 2 O + Heat 17) NaOH + H 2 O FeS CH 4 H 2 CO 3 2NaOH 2KOH 3CaO.Al 2 O 3.6H 2 O KNO 3 NaOH + Heat

Thermal DR 18) C 12 H 22 O 11 19) CaCO 3 20) 2Al(OH) 3 21) ZnCO 3 22) 2HgO 12C + 11H 2 O CaO + CO 2 (at 1000 o C) Al 2 O 3 + 3H 2 O (at 1000 o C) ZnO + CO 2 (Calcination) 2Hg + O 2

Photo DR 23) 2AgBr 24) 2AgCl 25) O 3 2Ag + Br 2 2Ag + Cl 2 O 2 + [O] Nascent oxygen Sunlight Heat

Electrolytic DR (Electrolysis) 26) 2H 2 O Acidiluted DR 27) CaS + HCl 2H 2 + O 2 (cathode) (anode) CaCl 2 + H 2 S

27) CuSO 4 + Fe (blue) 28) CuSO 4 + Zn 29) CuSO 4 + Pb 30) Zn + HCl 31) Fe + HCl 32) Mg + HCl 33) Cu + HCl 34) 2Al + 6HCl FeSO 4 + Cu (green) ZnSO 4 + Cu PbSO 4 + Cu ZnCl 2 + H 2 FeCl 2 + H 2 MgCl 2 + H 2 CuCl 2 + H 2 2AlCl 3 + 3H 2

35) Fe + H 2 SO 4 36) Zn + H 2 SO 4 37) Mg + H 2 SO 4 38) ZnO + C 39) 3MnO 2 + 4Al 40) Fe 2 O 3 + 2Al 41) 2C 2 H 5 OH + 2Na FeSO 4 + H 2 ZnSO 4 + H 2 MgSO 4 + H 2 Zn + CO (Reduction) 3Mn + 2Al 2 O 3 + Heat 2Fe + Al 2 O 3 + Heat (Thermit) 2C 2 H 5 ONa + H 2

42) CuCl 2 + 2KI 43) BaSO 4 + K 2 CrO 4 44) BaS + ZnSO 4 45) AgNO 3 + NaCl 46) BaCl 2 + H 2 SO 4 CuI 2 + KCl (brown) BaCrO 4 + K 2 SO 4 (yellow) BaSO 4 + ZnS (white) AgCl + NaNO 3 (white) BaSO 4 + HCl (white)

47) Al 2 O 3 + 6HCl Neutralization 48) NaOH + HCl 49) CuO + 2HCl 50) Ca(OH) 2 + CO 2 AlCl 3 + 3H 2 O NaCl + H 2 O CuCl 2 + H 2 O CaCO 3 + H 2 O

51) CaCO 3 + 2HCl 52) Na 2 CO 3 + 2HCl 53) Al 2 (CO 3 ) 3 +6HCl 54) CaCO 3 + H 2 SO 4 55) Na 2 CO 3 + H 2 SO 4 56) Al 2 (CO 3 ) 3 + H 2 SO 4 57) Ca(HCO 3 ) 2 + 2HCl 58) NaHCO 3 + HCl 59) Al(HCO 3 ) 3 +3HCl CaCl 2 + H 2 O + CO 2 NaCl + H 2 O + CO 2 AlCl 3 + H 2 O + CO 2 CaSO 4 + H 2 O + CO 2 Na 2 SO 4 + H 2 O + CO 2 Al 2 (SO 4 ) 3 + H 2 O + CO 2 CaCl 2 + H 2 O + CO 2 NaCl + H 2 O + CO 2 AlCl 3 + 3H 2 O + 3CO 2

60) CuO + H 2 61) BaSO 4 + 4C 62) SO 2 + 2H 2 S Cu + H 2 O BaS + 4CO 3S + 2H 2 O

63) C 12 H 22 O 11 + H 2 O Sucrose (condition=in presence of conc HCl at 323K in alcoholic medium) 64) Zn + NaOH C 6 H 12 O 6 + C 6 H 12 O 6 glucose fructose Na 2 ZnO 2 + H 2 Sodium zincate

65) 2NaHCO 3 66) Ca(OH) 2 + Cl 2 67) CaOCl 2 + CO 2 68) 2ZnS + 3O 2 Na 2 CO 3 + H 2 O + CO 2 CaOCl 2 + H 2 O (prep of bleaching powder) CaCO 3 + Cl 2 (HOTS) 2ZnO + 2SO 2

69) 2K + 2H 2 O 70) 2Na + H 2 O 71) Ca + H 2 O 72) Mg + H 2 O 73) 2Al + 3H 2 O 74) 3Fe + 4H 2 O 2KOH + H 2 2NaOH + H 2 Ca(OH) 2 + H 2 Mg(OH) 2 + H 2 Al 2 O 3 + 3H 2 Fe 3 O 4 + 4H 2

75) Al 2 O 3 + 2NaOH 76) 2NaAlO 2 + 2H 2 O 77) 2Al(OH) 3 ELECTROLYTIC REACTION Anode: 2O e - Cathode: Al e - 2NaAlO 2 + H 2 O NaOH + Al(OH) 3 Al 2 O 3 + 3H 2 O O2O2 Al C BAYER’S PROCESS

EXTRACTION OF COPPER 78) 2Cu 2 S + 3O 2 79) 2Cu 2 O + Cu 2 S EXTRACTION OF MERCURY 80) 2HgS + 3O 2 81) 2HgO 2Cu 2 O + 2SO 2 6Cu + SO 2 2HgO + 2SO 2 2Hg + O 2

FORMATION OF HYDRONIUM ION(H 3 O + ) ELECTROLYSIS OF *Aqueous NaCl *Fused NaCl

Combustion reaction: 86) CH 4 + 2O 2 87) 2C 4 H O 2 88) CH 4 +O 2 Addition reaction: CO 2 + 2H 2 O + HEAT 8CO H 2 O KJ C + 2H 2 O

91) CH 3 COOH + Cl 2 92) CH 2 ClCOOH + Cl 2 93) CHCl 2 COOH + Cl 2 94) 2CH 3 COOH + 2Na 95) CH 3 COOH + C 2 H 5 OH CH 2 ClCOOH + HCl CHCl 2 COOH + HCl CCl 3 COOH + HCl 2CH 3 COONa + H 2 CH 3 COOC 2 H 5 + H 2 O ZnCl 2

Substitution reaction 96) CH 4 + Cl 2 97) CH 3 CH 2 I + KOH 98) 2C 2 H 5 OH + 2Na 99) 3C 2 H 5 OH + PCl 3 CH 3 Cl + HCl CH 3 CH 2 OH + KI 2C 2 H 5 ONa + H 2 3C 2 H 5 Cl + H 3 PO 3 U.V. Rays