Question

a white substance decomposes producing a basic oxide and carbon dioxide. a) Name the basic oxide b) what happens when basic oxide reacts with water write reaction c) what is the test for co2 gas write equation​

Answer 1

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A White Substance decomposes producing a basic oxide and carbon dioxide

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2KClO³ +MnO2

⟶2KCl+30³

Compound A=Potassium chlorate

Compound B=Potassium chloride

Gas C=Oxygen

Black substance X=Manganese dioxide

General name of substance X=catalyst

MnO ²

acts as a catalyst in decomposition.

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(A)Name the Basic Oxide

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➥Sodium oxide, which reacts with water to produce sodium hydroxide. Magnesium oxide, which reacts with hydrochloric acid to form magnesium chloride. Copper(II) oxide, which reacts with nitric acid to form copper nitrate.

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What happens when basic oxide reacts with water write reaction

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➥ Sodium oxide reacts with water to form sodium hydroxide which is a base - as it furnishes OH- ions in solution. Since sodium oxide reacts to produce a base it is a basic oxide

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What is the Test for co2 gas Write Equation

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➥Carbon dioxide reacts with calcium hydroxide solution to produce a white precipitate of calcium carbonate. Limewater is a solution of calcium hydroxide. If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white.

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