molality, Molarity calculation with the 😂help of density 

Very nice sir

Thank you 🙏

Wah Sir aapne jo smjhaya vo ek dam mind Main fit Ho gya thank you sir❤❤❤🙏

Thanks sir

Seen . Priyanshu Kashyap

Thank you sir 🙏🙏🙏🙏🙏🙏🏻

Thank you so much sir 🙂

Thank you sir😊😊😊

Shivam Rajpoot

Nice

Good sir

Sir aap ka fundamental samaj nhi aa raha tha

Sir isme wa kam hai wb se

Thank you sir ji❤

Watched it sir

Yes ser

I have seen it 👍

Shivam pandey

I have seen it.

Kanak kushwaha

Clean dikhaiye

Himanshu Pandeyandey

I have seen it

😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊😊

Thanks sir

Thanks sir