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Red litmus paper turning blue in ammonia
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Red litmus paper turned blue by ammonia
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Positive test for chlorine A moist blue litmus paper is held over a test tube of chlorine The chlorine vapour turns the strip red and then bleaches
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Positive test for chlorine
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Test for chlorine A moist blue litmus paper is held over a test tube If the test tube contains chlorine which is acidic the litmus paper will turn
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Testing pH of soils
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Litmus paper being dipped into an alkaline solution Litmus paper is either red (as here) or blue The red form turns blue in alkalis The blue form t
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Litmus paper being dipped into an alkaline solution Litmus paper is either red (as here) or blue The red form turns blue in alkalis The blue form t
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Chlorine water (hyperchlorous acid) bleaching a strip of blue litmus paper In this oxidation reaction the chlorine water turns the blue litmus paper
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Litmus paper being dipped into an alkaline solution Litmus paper is either red (as here) or blue The red form turns blue in alkalis The blue form t
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Litmus paper
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Litmus papers being dipped into different solutions Litmus paper is either red or blue The red form turns blue in alkalis The blue form turns red i
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Litmus paper being dipped into an alkaline solution Litmus paper is either red or blue (as here) The red form turns blue in alkalis The blue form t
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Litmus paper being dipped into an alkaline solution Litmus paper is either red or blue (as here) The red form turns blue in alkalis The blue form t
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Litmus paper test on an orange
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Litmus test on an orange A piece of blue litmus paper held against a freshly-cut face of an orange The change of colour from blue to red means that
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Litmus test on a lemon A piece of blue litmus paper held against a freshly-cut face of lemon The change of colour from blue to red means that the le
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Litmus test on a lemon A piece of red litmus paper held against a freshly-cut face of lemon The lack of change of colour means that the lemon must b
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Litmus paper being dipped into an acidic solution Litmus paper is either blue (as here) or red The blue form turns red in acids The red form turns
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Litmus paper Test tubes containing acidic (left) and alkaline (right) solutions showing the colour change that litmus paper undergoes in each At ce
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Preparation of ammonia
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Hydrogen chloride preparation Solid sodium chloride is in the round-bottomed flask at left When sulphuric acid is dropped onto the sodium chloride f
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Chlorine water
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pH indicators Computer artwork showing a selection of indicators used to test different pH ranges The pH scale is a measure of the acidity or alkali
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Bicarbonate of soda toothpaste test
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Litmus test for amine solution This piece of litmus paper has been turned blue by being dipped in a solution of an amine indicating that the solutio
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Silicon (IV) chloride producing fumes A strip of red litmus paper has been dipped into the liquid and turned pink This shows that silicon (IV) chlor
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Acid-base indicators From left to right they are methyl orange phenolphthalein litmus solution blue litmus paper and red litmus paper These chan
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Litmus paper test Litmus paper changes colour in acidic or alkaline conditions It is a mixture of lichen pigments It turns red in acids (left) and
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Litmus paper test Blue litmus paper turns red in the presence of an acid The juice from the lemon contains citric acid Litmus is an organic materia
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Litmus strips
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Meauring cylinders with coloured liquid and test strips on white background close up
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Litmus test Demonstration of the colour of litmus indicator when added to an acid (left) and an alkali Litmus is a chemical indicator derived from t
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Acid test blue litmus paper turns red in the presence of lemon juice (citric acid) The blue test paper is impregnated with litmus solution (derived
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