Advertisements
Advertisements
Question
Explain why an aqueous solution of ammonium chloride is acidic in nature? Illustrate your answer with the help of a chemical equation.
Advertisements
Solution
An aqueous solution of ammonium chloride (NH4Cl) is acidic because it is a salt formed from a strong acid (HCl) and a weak base (NH4OH). When dissolved in water, the salt dissociates into ammonium ions \[\ce{(NH^+_4)}\] and chloride ions (Cl−). The ammonium ions act as a weak acid, reacting with water (hydrolysis) to donate a proton. This releases hydronium ions (H3O+), which lowers the pH of the solution.
\[\ce{NH^+_{4{(aq)}} + H2O_{(l)} <=> NH3_{(aq)} + H3O^+_{( aq)}}\]
APPEARS IN
RELATED QUESTIONS
What colour does the turmeric paper turn when put in an alkaline solution?
Which chemical is injected into the skin of a person during an ant’s sting?
How can the effect of these stings be neutralised?
Which acid is produced in our stomach? What happens if there is an excess of acid in the stomach? How can its effect be cured?
What happens when bases react with non-metal oxides? Explain with the help of an example. What does this reaction tell us about the nature of non-metal oxides?
Bee sting contains ______.
The salt which will give a neutral solution on dissolving in water will be ______.
Do basic solutions also have H+(aq)? Why are they basic?
Out of HCl and CH3COOH, which one is a weak acid and why? Describe an activity to support your answer.
Identify the following solutions, whether they are acid or base.
| Solution | Change in Indicator | Acid/Base | ||
| Litmus | Phenolphthalein | Methyl orange | ||
| 1. | -- | No change | -- | |
| 2. | -- | -- | Orange colour turns red | |
| 3. | Red litmus turns blue | -- | -- | |
Main constituent of acid is ______.
Define an acid.
Fill in the blank
The word acid comes from latin word acidus meaning _________
Acids are bitter in taste.
Zn + 2 HCl → ZnCl2 +_____↑
Classify the various types of Acids based on their sources.
Citric acid is present in ______.
Acids have a sour taste and they are soapy to touch.
Complete the following equation.
Zn + ______ → Na2ZnO2 + H2 ↑
Name the acid present in grapes.
