hi ,

if you forgot to write the set number or question number in board exam here are the outcomes that can happen -

if you forget to write the set number -

• if your answer match a particular set , the examiner might correct the answer.
• in strict cases , your answers might be marked incorrect , invalid if the examiner could not determine the correct set .

if you forgot the question number -

• if the sequence of answer is correct , the examiner might check ,
• if the answers are mixed up , marks may be deducted or answers would be left unmarked .