Good afternoon, i m in class 10th now can i appear in iit exam
No you cannot.
Students in 12th as Appearing or who have lready appeared can only be allowed to attempt for Jee Main and Jee Advanced exams. Students must have optes for PCM subjects in 12th.
Jee advanced eligibility criteria below.
https://engineering.careers360.com/articles/jee-advanced-eligibility-criteria/amp