Advertisements
Advertisements
प्रश्न
How is an acid prepared from a non metal and a base from a metal? Give equation.
Advertisements
उत्तर
Acid from a non metal:
Certain non metals like sulphur (S), phosphorous(P), can be oxidized by concentrated nitric acid to yield corresponding acid.
Non metal + Acid → Acid + water + Oxide
S + 6HNO3 → H2SO4 + 2H2O + 6NO2
Base from a metal :
Active metals like K, Na, Ca react with water to produce water soluble bases. These bases are called alkalis.
Active metal + water → Base/Alkali + Hydrogen
2Na + 2H2O → 2NaOH + H2.
APPEARS IN
संबंधित प्रश्न
Name an indicator which is pink in alkaline solution but turns colourless in acidic solution.
What colour does the turmeric paper turn when put in an alkaline solution?
Name the acid present in vinegar.
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 | -- | -- | |
Give the name and formula of two : Strong monobasic acids
Explain, all alkalis are bases but all bases are not alkalis.
The preparation of Lead sulphate from Lead carbonate is a two-step process. (Lead sulphate cannot be prepared by adding dilute Sulphuric acid to Lead carbonate.)
Write the equation for the reaction that will take place when this first step is carried out.
Most of the acids are not soluble in water.
Which of the following metal does not react with sodium hydroxides?
To Interpret:
CH4 and NH3, are not acids.
