Iron nail dipped in copper sulphate solutionकॉपर सल्फ़ेट विलयन में डूबी लोहे की कील

NCERT Fig 1.8 · interactive diagram

Parts and their functions

• Iron nail (cleaned) (लोहे की कील (साफ़)) — Rub with sandpaper first. Iron is more reactive than copper.
• Thread (धागा) — The nail is tied with a thread and dipped in the solution for about 20 minutes.
• Copper sulphate solution (blue) (कॉपर सल्फ़ेट विलयन (नीला)) — Blue colour is due to copper sulphate (CuSO₄).
• Iron sulphate solution (light green) (आयरन सल्फ़ेट विलयन (हल्का हरा)) — Iron displaced copper, so the solution now has FeSO₄ — blue colour fades.
• Brownish copper coating (भूरी कॉपर परत) — Copper metal deposits on the nail — so the nail becomes brownish.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 1.8. Report a mistake