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प्रश्न
After you have dinner tonight, wash your own plates with soap/detergent.
- What colour change is observed when soap/detergent is applied?
- Name the type of reaction and explain it.
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उत्तर
(a) When we wash our dinner plate with soap/detergent, the yellow oily leftover stains will turn red/orange due to its reaction with soap/detergent.
(b) It is a neutralisation reaction. The reaction between an acid and a base to form salt and water is called a neutralisation reaction.
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संबंधित प्रश्न
Sodium hydroxide and hydrochloric acid neutralise each other and form salt and water.
Classify the following reaction as combination, decomposition, displacement, precipitation and neutralization. Also balance the equation.
\[\ce{CuSO4_{(aq)} + H2S_{(s)} -> CuS_{(s)} + H2SO4_{(l)}}\]
Define neutralization.
What do you observe when an acid is added to a basic solution.
FILL IN THE BLANK
In a .............reaction, an acid reacts with a base to form salt and water as the only products.
Classify the following substances into Acidic, Basic, and Neutral groups.
HCl, NaCl, MgO, KCl, CaO, H2SO4, HNO3, H2O, Na2CO3
Answer the following question:
Grills of doors and windows are always painted before they are used? Give reason.
Answer the following:
What is corrosion? Do gold ornaments corrode? Justify.
Differentiate between the following:
Neutralization reaction and a precipitation reaction.
Products of a neutralisation reaction are always ______.
Neutralisation reaction is a ______.
Look at the given reaction.
Hydrochloric acid + Sodium hydroxide (base) → Sodium chloride (salt) + Water
Sodium chloride formed in this reaction remains in solution form. Can we get solid sodium chloride from this solution? Suggest a method (if any).
Form a sentence using the following words – baking soda, ant bite, moist, effect, neutralised, rubbing.
Write a note on:
Ant bite
Write a note on:
Wasp bite
What is the difference between an ant sting and a wasp sting?
