सम्मुख पन्ना

विकिमिडिया कमन्स

एक भण्डार जे ११,६५,८५,६५७ खुला रूपसँ उपयोगी मिडिया फाइलसभक संग्रहमे सब कियो योगदान कऽ सकैत छी

आईके चित्र

Flowering trees at the bottom of the Eiffel Tower in Paris (France). Today is the March equinox, which marks the beginning of astronomical spring in the Northern Hemisphere.

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आईके मिडिया

An experiment showing burning of sulfur in oxygen. A flow-chamber joined to gas washing-bottle (filled with solution of methyl orange) is being used. The product is sulfur dioxide (SO₂) with some traces of sulfur trioxide (SO₃). The 'smoke' that exits the gas-washing bottle is, in fact, a sulfuric acid fog generated in a reaction represented by:

SO₃(g) + H₂O(l) = H₂SO₄(aq).

The oxides are acidic, as can be witnessed by the colour change of the indicator.

^{+/− (mai), +/− (en)}

भाग लैत

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