Vodorod va vodorod peroksid. Olinishi va xossalari Vodorodning olinishi va xossalari

d) Molekulyar va atomar vodorodning aktivligini solishtirish

a) Ikkita probirkaga 5 ml dan H₂SO₄ ning 2 n eritmasidan soling. So‘ngra ularning ustiga KMnO₄ eritmasidan 3-4 tomchidan tomizing. Birinchi probirkaga Kipp apparatidan vodorod yuboring. Ikkinchi probirkaga esa 2-3 dona rux bo‘laklaridan tashlang. Probirkadagi eritmalar rangining o‘zgarish tezligini kuzating. Reaksiyada marganes sulfat, kaliy sulfat hosil bo‘lishini nazarda tutib, reaksiyalar tenglamasini molekulyar va ion holda yozing. Kuzatilgan hodisaning sababini tushuntiring.

b) Ikkita probirkaga 4-5 tomchidan temir (III)-xlorid eritmasidan soling. So‘ngra ularning ustiga 3-4 tomchidan 2 n sulfat kislota va 1-2 tomchidan kaliy rodanid eritmasidan qo‘shing. Eritmada Fe(CNS)₃ hosil bo‘lishi natijasida uning rangi qizaradi.

Birinchi probirkaga Kipp apparatidan vodorod yuboring. Ikkinchi probirkaga 2-3 dona rux bo‘laklaridan tashlang. Probirkalardagi eritmalar rangining o‘zgarish tezligini kuzating. Nima uchun rux solingan probirkada eritma tez rangsizlanadi? Kislotali muhitda temir (III)-rodanid bilan vodorod orasida boradigan reaksiya tenglamasini yozing.