These questions keep getting better and better So, for the monochloride compounds of the group 7 member i have to state and explain the trend in their reaction with water. Iv searched the depths of the internet and havent found much. The only info i got was on iodine monochloride from wikipedia which states it undergoes hydrolysis in water. If i was to give an educated guess id say that the greater the polarity of the compounds (ClF being the most and BrCl being the least) the more ionic in character and the greater the solubility. That might not even be an answer but its all i can think of any ideas?