Reforming | knocking agent | anti knocking agent | octane number | fuel quality| Class 12 urduहिन्दी

[@samreenjavaid7963]

Sir ap bht acha smjhty hn concept clear ho jaty hn

[@UmairKhanAcademy]

thank you for your great words

[@Naibzahra-b9s]

Thank you soo much sir your lectures are too much❤efective

[@excelscienceacademy9785]

Excellent teaching style
Kia bat h umair sb ki
MashAllah
Allah bless you

[@UmairKhanAcademy]

Allah bless you too

[@Sandhya-gq5cs]

Thank you sir !!✨it was really helpful ~✨

[@Abdulrazzaq-kp7bx]

Thanks sir g my favourite teacher umair khan and high chemist sir

[@harisrajput6123]

Osm method of teaching
Loved your style of teaching sir ♥

[@UmairKhanAcademy]

Thanks.
I just want your well wishes and pray for me.

[@WatchdogWisdomWorld]

Thank you Sir! ❤️

[@hamzaazam4467]

Sir ya bhi btaya krain konsa question Kitna important ha long ha ya short

[@sohailgopang3312]

Fascinating lecture

[@UmairKhanAcademy]

Thanks

[@malikshazil2736]

Thanks sir

[@UmairKhanAcademy]

My pleasure

[@fkvlogs2029]

Zbrdst🙌

[@UmairKhanAcademy]

Thanks

[@luckyvsninjafusion8186]

Sir hum heat in the absence of oxygen kaise ker sakte ha

[@UmairKhanAcademy]

You can give heat keeping the container closed after removing oxygen/air.

[@bismilraees4915]

Thanks sir