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What change will you observe if you test...

What change will you observe if you test soap with litmus paper (red and blue)?

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Since soap is basic in nature,it will turn red litmus blue litmus will remain blue .
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You are provided with three test tubes A,B and C as shown in Figure 5.3 with different liquids . What will you observe when you put (a) a piece of blue litmus paper in each test tube . (b) a piece of red litmus paper in each test tube . (c ) a few drops of phenolphthalein solution to each test tube .

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What will you observe when : (i) Red litmus paper is introduced into a solution of sodium carbonate. (ii) A methyl orange drop is added to dilute hydrochloric acid. (iii) A drop of phenophthalein is added to the solution of lime water. (iv) Blue litmus is introduced into a solution of ferric chlorede.

(a) Write your observation, if you dip a red litmus paper in soap solution. (b) Suggest one method to remove the temporary hardness of water.

OSWAL PUBLICATION-CARBON COMPOUNDS -NCERT CORNER (Exercise Questions)
  1. Ethane, with the molecular formula C(2)H(6) has

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  2. Butanone is a four-carbon compound with the functional group

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  3. While cooking, if the bottom of the vessel is getting blackened on the...

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  4. Explain the nature of the covalent bond using the bond formation in CH...

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  5. Draw the electron dot structures for Ethanoic acid

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  6. Draw the electron dot structures for H(2)S

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  7. Draw the electron dot structures for : propanone.

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  8. Draw the electron dot structures for F(2)

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  9. What is a homologous series ? Explain with an example.

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  10. How can ethanol and ethanoic acid be differentiated on the basis of th...

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  11. Why does micelle formation take place when soap is added to water? Wil...

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  12. Why are carbon and its compounds used as fuels for most applications?

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  13. Explain the formation of scum when hard water is treated with soap.

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  14. What change will you observe if you test soap with litmus paper (red a...

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  15. What is hydrogenation? What is its industrial application?

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  16. Which of the following hydrocarbons undergo addition reactions: C(2)H...

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  17. Give a test that can be used to differentiate chemically between butte...

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  18. Explain the mechanism of the cleaning action of soaps.

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