फार्मल्डिहाइड बनाने की प्रयोगशाला विधि | formaldehyde banane ki prayogshala vidhi class 12th

[@PriyaMaurya-lu2ru]

Helpfull video nice sir ji

[@AnkitPrajapati-xv7we]

❤❤

[@Nitinf563]

Very nice sir

[@mdgulsher4224]

Aap ka damjhane ka trika bhot achha h

[@Shivammafiya-cy4mf]

samajh mein a raha hai sir ❤

[@Tejpal-k7y]

Acha h sir bhot jyada 😊

[@narayanshiva2222]

Very nice

[@mdgulsher4224]

Sir ap bhot achhe se samjhate hain ❤

[@Akash.k568]

Nice sir ❤

[@mdgulsher4224]

Thank u sir ji ❤❤❤

[@PranumChauhan]

Nice sir🎉

[@PrajapatiAnkita-i3p]

Sir aap bhut ache se smjha rhe hai ❤❤❤❤

[@PrajapatiAnkita-i3p]

Sir aap ak aisha bhi video bnaiye jisme chemistry ke छोटे छोटे question ho jisse CNET k questions bne please sir ????

[@PrajapatiAnkita-i3p]

Nice sir ❤❤❤

[@SleepyCorn-uq1zi]

Nice sir ❤