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Phenols turn blue litmus red...

Phenols turn blue litmus red

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Dry hydrogen chloride gas does not turn blue litmus red whereas hydrochloric acid does. Give one reason.

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A basic solution turns blue litmus red.

Mark 'T' if the statement is true and 'F' if it is false:- Sodium hydroxide turns blue litmus red.

Sulphuric acid turns blue litmus red.

Select the substance from the following list which turn blue litmus solution red: Tomato juice Tooth paste Milk of magnesia Coffee Wine Household ammonia Vinegar Battery acid

What happens when blue litmus paper is dipped in a cold drink?

A water soluble compound 'X' of sodium on reacting with dil. H_2SO_4 released a colourless gas accompanied by brisk effervescence. When the gas was passed through water, the solution obtained turned blue litmus solution red. On bubling the gas through lime water, it initially became milky and the milkness disappeared when the gas was passed in excess. Identify the substance 'X' and write the chemical equation for the reactions involved.

JMD PUBLICATION-ALCOHOLS,PHENOLS AND ETHERS-EXAMPLE
  1. T/F Acidic character of alcohols follows the order , 3^@ > 2^@ > 1^@...

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  2. Out of three isomeric nitrophenols, the p-nitrophenol is most acidic.

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  3. Phenols turn blue litmus red

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  4. Alcohols reacts with sodium metal to release hydrogen gas True/False

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  5. C-O-C bond angle in ethers is higher than H-O-H bond angle in water th...

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  6. Write the mechanism of hydration of ethene to yield ethanol.

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  7. How will you convert Methanol into Ethanol ?

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  8. How will you get primary, secondary and tertiary alcohols from suitabl...

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  9. Give equations of reactions for the preparaton of phenol from cumene(C...

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  10. Write short note on Dow's process.

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  11. How will you convert chlorobenzene into phenol ?

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  12. Alcohols have higher boiling point than alkanes.Why ?

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  13. Why do alcohols have higher boiling points than halo-alkanes of the sa...

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  14. Alcohols are soluble in water while alkyl halides arenot, although bot...

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  15. Why alcohols are higher boiling point than hydrocarbons of correspond...

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  16. Why solubility of alcohols in water decreases with increase in molecul...

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  17. Why has phenol, higher boiling point than toluene ?

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  18. Why alcohols are weaker acids than water ?

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  19. What are Kolbe’s Reaction ? Give one example.

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  20. Write following name reactions : Riemer Tiemann reactioin.

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