ETEA Per Engineering Papers

Q: The vector produce of vector A by itself is

(a) :  1
(b) :  -1
(c) :  Null vector
(d) :  None
Answer:  1
Explanation:  

Q: During the electrolysis of a CuCl3 sol which of the following reaction is posssible at the anode>?

(a) :  2H₂O=O₂ 4H+ 4e=CU
(b) :  CU++ 2e= CU
(c) :  2H+ +2e- =H₂
(d) :  CU= C⁺⁺ + 2e-
(e) :  None
Answer:  2H₂O=O₂ 4H+ 4e=CU
Explanation:  

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