Zinc granules with dilute sulphuric acid — testing hydrogen gasजिंक के दाने और तनु सल्फ़्यूरिक अम्ल — हाइड्रोजन गैस का परीक्षण

NCERT Fig 2.1 · interactive diagram

Parts and their functions

• Test tube (परखनली) — About 5 mL of dilute sulphuric acid with a few zinc granules.
• Dilute sulphuric acid (तनु सल्फ़्यूरिक अम्ल) — Acid + metal → salt + hydrogen gas. Repeat with HCl — the same gas forms.
• Zinc granules (जिंक के दाने) — Bubbles appear on their surface — zinc displaces hydrogen from the acid and forms zinc sulphate.
• Delivery tube (निकास नली) — Carries the gas from the test tube into the soap solution.
• Soap solution (साबुन का विलयन) — The gas forms bubbles in it, so we can catch and test the gas.
• Hydrogen-filled bubble (हाइड्रोजन से भरा बुलबुला) — Brought near a flame it burns with a "pop" sound — the test for hydrogen gas.
• Burning candle (जलती मोमबत्ती) — Used to test the gas: hydrogen burns with a pop sound.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 2.1. Report a mistake