Directive or orientation effect of benzene 

Ma'am!!!! THANK YOU SOO MUCHH . YOUR LECTURES ARE PERFECT . YOUR METHOD OF TEACHING , YOUR HANDWRITING , EVERYTHING NEEDS TO BE PRAISED .

Nyc explanation

Well explained.

Thank u mam very well explaination

Well explained lecture 👏👏

MASHALLAH

Thank didi bahut hi Accha explain Karti ho sab samujh Mai aa jata hai

Very good explain.....

Thanks a lot mam... you are too good than our teacher.

Thanks Mam Very well explained

Bohat shukriya

❤❤❤❤

great

Thank you Mam💜💜

Great

Bohut acha

THANKS MADAM

Thanks mam good concept

Mashallah please tell me your education

❤️

Nice explanation