Test Five (Chapters 13-15) Google Chrome empt php? attempt 3240358 page-12 To ba

Question

Test Five (Chapters 13-15) Google Chrome empt php? attempt 3240358 page-12 To balance the half reaction, sos) so 20g), which takes place in acidic solution, you C b. add 2 H OC) to the reactant side and 4H Gaq) to the product side. o c add 4H daq) plus 4e. to the reactant side and 2 H,oa to the product side d add 4e to the product side. O e. add 4H Gaq) to the reactant side and 2 H2OC) to the product side. A secondary alcohol can be oxidized to an aldehyde. What is the correct coemcient for snut in the following oxidation-reduction reaction? b, 1

Explanation / Answer

Q1.

S(s) = SO2(g)

note that S is already balanced, so the next step is to balnce Oxygen atoms, by adding H2O

therefore

H2O(l) must be added in the LEFT side

then, we need to balance H, so add 4H+ in the right side

electron charge must be balanced so, add 4e- in the left side

(left = reactants, right = product)

from the list, the best answer is

C

Q2.

a secondary alcohol can only be oxidized to a keton, since only primary alcohols will undergo aldehyde formation

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