Please select a subject first
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Write the chemical equation for the following:
Combustion of methane
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When sodium hydrogen carbonate is added to ethanoic acid, a gas evolves. Consider the following statements about the gas evolved.
- It turns lime water milky.
- It is evolved with brisk effervescence.
- It has a smell of burning sulfur.
- It is also a by-product of respiration.
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Assertion (A): Esterification is a process in which a sweet-smelling substance is produced.
Reason (R): When esters react with sodium hydroxide an alcohol and sodium salt of carboxylic acid are obtained.
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Distinguish between esterification and saponification reactions with the help of chemical equations for each.
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With a labelled diagram describe in brief an activity to show the formation of ester.
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Mineral acids are stronger acids than carboxylic acids because
- mineral acids are completely ionised
- carboxylic acids are completely ionised
- mineral acids are partially ionised
- carboxylic acids are partially ionised
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A few drops of ethanoic acid were added to solid sodium carbonate. The observation made was that ______.
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A student while observing the properties of acetic acid would report that this smells like ______.
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Vinegar is a solution of ______.
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Ethanoic acid is also known as which of these?
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Which of these is not an organic acid?
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Ester is formed by the reaction between ______.
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Which of the following substance produces brisk effervescence with baking soda solution?
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When ethanoic acid is treated with NaHCO^ the gas evolved is ______.
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Which of the following represents saponification reaction?
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Anita added a drop each of diluted acetic acid and diluted hydrochloric acid on pH paper and compared the colors. Which of the following is the correct conclusion?
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Shristi heated Ethanol with a compound A in presence of a few drops of concentrated sulphuric acid and observed a sweet smelling compound B is formed. When B is treated with sodium hydroxide it gives back Ethanol and a compound C.
- Identify A and C
- Give one use each of compounds A and B.
- Write the chemical reactions involved and name the reactions.
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Reshu by mistake forgot to label the two test tubes containing Ethanol and Ethanoic acid. Suggest an experiment to identify the substances correctly? Illustrate the reactions with the help of chemical equations.
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What happens when a small piece of sodium is dropped in ethanol? Write the equation for this reactions.
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Why is glacial acetic acid called so?
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