hello just wanna make sure of my answers and I need only the way of solving of questions 36-37

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34) What is the total number of electrons transferred during the balanced reaction? 2Na+2H+2Na++H2? a. a transfer of 2 electrons from Na to H+ b. a transfer of 1 electron from Na to H+ c. a transfer of 2 electrons from H+to Na d. a transfer of 1 electron from H+to Na 35) What is the total number of electrons transferred during the balanced reaction? 2Ce+3Cu2+3Cu+2Ce3+ b. a transfer of 6 electrons from Ce to Cu2+Ce+2CeCu+2cuCu+1 d. a transfer of 6 electrons from Cu2+ to Ce3+362+2+2=6 37) Which of the following reactions is an oxidation-reduction reaction? a. 2HIH2+I2 b. HCl+NaOHNaCl+H2O c. CaCO3CaO+CO2 d. AgNO3+NaBrNaNO3+AgBr 38) Which of the following reactions is not an oxidation-reduction reaction? a. N2+O22NO b. H2O+SO2H2SO3 c. H2+Cl22HCl d. 2NaBr+Cl22NaCl+Br2