Wrongly placed chessboard - what happens? What happens if the chessboard is kept with black square on right hand side instead of white square? I think that the notations will change.
In the new positon, the White king will be positioned on a white square and the Black king will be positioned on a black square. The White queen will be positioned on a black square and the Black queen will be positioned on a white square.
Why this is considered a wrong placing of the chess board? Addtionally, does White or Black have an advantage, and will strategies and tactics change?
It's wrong because the rules say so:

2.1 The chessboard is composed of an 8 x 8 grid of 64 equal squares alternately light (the ‘white’ squares) and dark (the ‘black’ squares).
The chessboard is placed between the players in such a way that the near corner square to the right of the player is white.

Of course, those rules are based on what has been common practice for a very long time. Apparently, an incorrectly placed board happens often enough to warrant a rule for what to do when that happens:

7.2.2     If during a game it is found that the chessboard has been placed contrary to Article 2.1, the game shall continue but the position reached must be transferred to a correctly placed chessboard.

Since the pieces have the same position relative to each other, it doesn't affect strategy and tactics. Notation won't change; the column of the starting positions of the queens is still column 'd'. If you have a board with numbers/letters, it's even easier to spot the problem.