Advertisements
Advertisements
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.
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.
APPEARS IN
संबंधित प्रश्न
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.
Which substances are produced by the neutralization process?
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.
Products of a neutralisation reaction are always
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.
Assertion: To neutralize the excess acid formed in the stomach, milk of magnesia is taken.
Reason: Milk of magnesia contains a base called magnesium hydroxide.
Write a note on:
Wasp bite
What is the difference between an ant sting and a wasp sting?
