Question

Write 10 words where the -ch is pronounced as/sh/.Anyone PLeaSe answer.​

Answer 1

Answer:

That is a so called Fugen-s, which should make the word easier to pronounce.

So the correct pronunciation for all these words is like

Oberbefehl(-)s-haber

Note that there is no real rule to when a Fugen-s is used. One of the more famous examples is Schadenersatz, which is used with and without Fugen-s. (Of course also depends on the region!)

The place names your mentioned are pronounced alike, although etymologically the s might not be a Fugen-s. (In Geroldsheim "Gerolds" could be the genitive of "Gerold".)