Advertisements
Advertisements
प्रश्न
What happens to temperature of the solution, when an acid is neutralised?
उत्तर
The temperature of the solution increases, because a neutralisation reaction is an exothermic reaction in which heat is produced.
APPEARS IN
संबंधित प्रश्न
Which chemical is injected into the skin of a person during an ant's sting?
How can the effect of these stings be neutralised?
One of the following is a medicine for indigestion. This is:
(a) sodium hydroxide
(b) manganese hydroxide
(c) magnesium hydroxide
(d) potassium hydroxide
The acid produced naturally in our stomach is:
(a) acetic acid
(b) citric acid
(c) hydrochloric acid
(d) sulphuric acid
Give a balanced equation for reaction of nitrogen dioxide with water.
Classify the following solutions as acids, bases or salts.
Ammonium hydroxide, barium chloride, sodium chloride, sodium hydroxide, H2SO4 and HNO3
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 | -- | -- |
HCl, HNO3, C2H5OH, C6H12O6 all contain H atoms but only HCl and HNO3 show acidic character. Why?
Write the balanced equation for the preparation of the following compound (as major product) starting from iron and using only one other substance:
Iron (III) chloride
The correct way of making a solution of acid in water is to
What are acids?