chemistry: exp. Test 2023

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#1. 1) The electronic configuration of the cations of the two elements (X) and (Y) are ……….. X4+ : [18Ar] 3d1 Y6+ : [18Ar] 3d2 One of the properties of the alloy formed from element (X) and one of the alloys of element (Y) with carbon is ………….

#2. 2)All the following reactions produce water except ………..

#3. 4) You have two solutions, one of them has litmus and the other has methyl orang and both of them have red colour in each medium. Which one of the following salt solutions distinguishes between them….

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