Redox Reaction(General Knowledge > General Science ) Questions and Answers
Question 1. Which of the following is a redox reaction?
NaCl + KNO3 → NaNO3 + KCl
CaC2O4 + 2HCl → CaCl2 + H2C2O4
Mg(OH)2 + 2NH4Cl → MgCl2 + 2NH4OH
Zn + 2AgCN → 2Ag + Zn (CN)2
Explanation:-
Answer: Option D. -> Zn + 2AgCN → 2Ag + Zn (CN)2
Question 2. Find the redox reaction
In the atmosphere, O3 from O2 by lighting
The reaction of H2SO4 with NaOH
Both oxidation and reduction reaction
Evaporation of water
Explanation:-
Answer: Option C. -> Both oxidation and reduction reaction
Question 3. Redox reactions are oxidation-reduction chemical reactions
TRUE
FALSE
Can be true or false
Can not say
Explanation:-
Answer: Option A. -> TRUE
Question 4. Find the correct statement concerning the Latimer diagrams:
Latimer diagrams are also called oxidation diagrams
The data from the Latimer diagrams cannot be used when calculating the standard potentials of redox reactions.
Latimer diagram contains different chemical species of an element with the most highly oxidized species on the left and the most reduced species of the element on the right correct
None
Explanation:-
Answer: Option D. -> None
Question 5. Mg + PbCl2 --> MgCl2 + Pb
Mg is oxidized and Cl- is reduced
Mg is oxidized and Pb+2 is reduced
Mg is reduced and Cl- is oxidized
Mg is reduced and Pb+2 is oxidized
Explanation:-
Answer: Option B. -> Mg is oxidized and Pb+2 is reduced
Question 6. The value of x & y in the following redox reaction-xCl2 + 6OH– → ClO−3 + yCl– + 3H2O are
