InterviewSolution
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What is galvanic cell ? discuss the construction and working of daniel cell ? |
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Answer» The Daniell cell consists of a zinc rod dipping in a solution of zinc sulphate, connected by a wire to a copper rod dipping in a copper sulphate (II) solution. Spontaneous oxidation and reduction reactions generate electric current, with electrons passing from the zinc rod to the wire and from it to the copper rod, originating a current along the wire. Construction:- In the construction of Daniel cell many chemical and non-chemical materials are used. The materials are given below: (i) a strip of copper (ii) a strip of zinc (iii) a large beaker, bowl or other suitable container (iv) a porous vase (as discussed in the Introduction) (v) a plastic tube (vi) cotton (vii) Copper Sulfate (CuSO4) (viii) Zinc Sulfate (ZnSO4) (ix) Potassium Nitrate (KNO3) (x) Sodium Chloride (NaCl) if Potassium Nitrate is unavailable (xi) distilled water (xii) a voltmeter two cables with alligator clips |
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