🎨 Kaali ink asal mein kai rangon ka mixture hai!

Filter paper ka nichla sira paani (solvent) mein hai. Solvent upar chadhega aur apne saath ink ke components ko le jaayega. Jo component zyada soluble hai wo upar tak jaayega, jo kam soluble hai wo neeche reh jaayega - saare rang alag dikhne lagenge!