20 December से Exam तक ऐसे ही पढ़ना है How to Score 90% इन 40 Days Last 50 Days Strategy #ChandraSir

In this video i have explain about board exam 2020 how to score 90% in just 40 days | last 50 days strategy. ABOUT CHANDRAHAS SIR:-........................................... S&K CLASSES is the first choice of student in Northen India for preparation of JEE main and advanced ,NEET & AIIMS. Chandrahas Sir is first online teacher of chemistry in Dehradun. Chandrahas Sir is known for his focused and simplified JEE main and advanced/NEET/AIIMS/BOARD teaching to bring to student an easy and analytical methodology towards JEE main and advanced / AIIMS. NEW UPLOADS - EVERYDAY CONNECT WITH US :- MY INSTAGRAM PROFILE :- https://www.instagram.com/chandrahas_sir/?hl=en MY FACEBOOK PAGE :- https://www.facebook.com/ChandrahasKumarHODChemistry/ MY FACEBOOK GROUP LINK :- https://www.facebook.com/groups/1797373396959050/ MY DAUGHTER CHANNEL (Miss Naurish Kumar) click the link and SUBSCRIBE her channel :- https://www.youtube.com/channel/UC6XXsrtFSXsk6CKuktJ-tBw * Online webinar for chemistry -https://www.youtube.com/edit?o=U&video_id=n_gbVJj5PLs *solid state | position of octahedral &tetrahedral voids in F.C.C-https://www.youtube.com/edit?o=U&video_id=6jrGVWVRXMU *How to memorize 7 crystal system -https://www.youtube.com/edit?o=U&video_id=kc7DaJccjFs Please do let me know if you have any doubt about this chapter I APPRECIATE YOUR VISIT TO MY CHANNEL. THANK YOU