Central Board Of Secondary Education [CBSE] — wrong question

Class x science paper no. 31/2, set no. 2, q. No. 10 asked for a salt with ph 14. A salt with ph 14 does not exist. So please look into it as many students were confused because of this. This confusion caused many to mis-interpret it. Students consumed much of their time trying to think about a salt with ph 14. The students who are not at fault suffered, so please give a ’benefit of doubt’ while checking.