Redox Reactions questions
1186 published questions with worked solutions.
- Which of the following is not a redox reaction?
- Oxidation number of P in HP_2O_7^ 3- ion is
- In the reaction, SO_2 + 2H_2S 3S + 2H_2O the substance that oxidises (the oxidising agent) is
- The oxidation number of N and Cl in NOClO_4 respectively are
- Among the following, what is the total number of compounds having zero oxidation state of the underlined element? (a) S O_3^ 2-...
- In the following reaction xZn + yHNO_3(dil) aZn(NO_3)_2 + bH_2O + cNH_4NO_3 What is the sum of the coefficients (a+b+c)?
- CN^- ion is oxidized by a powerful oxidizing agent to NO_3^- and CO_2, depending on the acidity of the reaction mixture: CN^-...
- Among the species (a) F_2 (b) F^- (c) Na (d) Na^+ (e) MnO_4^- (f) I^- (g) Cl^- (h) Ce^ 4+ (i) Cr_2O_7^ 2- (j) CrO_4^ 2- (k) HNO_3...
- Among the following five species, what is the sum of the oxidation numbers of the underlined elements (per atom)? (a) S O_3^ 2-...
- Among the following, what is the total number of compounds having +3 oxidation state of the underlined element? (a) K_4 P _2O_7...
- Among the species (a) F_2 (b) F^- (c) Na (d) Na^+ (e) MnO_4^- (f) I^- (g) Cl^- (h) Ce^ 4+ (i) Cr_2O_7^ 2- (j) CrO_4^ 2- (k) HNO_3...
- Among the compounds given in Q96 above, what is the total number of compounds having +5 oxidation state of the underlined element?
- Among the species given in Q94 above, what is the total number of species which are neither oxidising agents nor reducing agents?
- In the reaction, 2KMnO_4+16HCl 2KCl+2MnCl_2+8H_2O+5Cl_2, the reduction product is:
- The oxidation number of Cl in KClO_3 is:
- The oxidation number of phosphorus in Mg_2P_2O_7 is:
- When Cl_2 gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes
- In which reaction H_2O_2 acts as a reducing agent?
- What is the ox. no. of Mn in K_2MnO_4?
- The oxidation number of P in KH_2PO_2 is:
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