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14) What is the reduction hall-eeaction for the following overall cell reaction? 14) 15) What is the relation between joules (h, volts (V), and coulombs (C)? 15) A)I)-iv.IC B) 1 ?-1V.ic 91)-1C.1V D)1J01v-1C2 16) Which group of elements, indicated by lether and shading on the periodic table above, reprewents 16)_ the transition elemens A)A B) B D) D 17) Given that rned--026 Vir Ni2YNIat29? find E"-d Efor the concentration cell expresed 17) _ uning shorthand notation below B) E- -026V and E-002 v

Answer 1

Ans 14 : D) Ni²⁺ (aq) + 2e^- = Ni (s)

When the oxidation state of the element is reduced , it is said as reduction , whereas when the oxidation state of the element is increased , it is said to be oxidation.

Here in the reaction , Ni is getting reduced from +2 to 0 , so Ni²⁺ is getting reduced to Ni by accepting two electrons.