Advertisements
Advertisements
Question
How is an acid prepared from a non metal and a base from a metal? Give equation.
Advertisements
Solution
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
RELATED QUESTIONS
Name an indicator which is pink in alkaline solution but turns colourless in acidic solution.
Name one animal and one plant whose stings contain formic acid (or methanoic acid).
What is produced if an acid is added to a base?
Name an acid used to flavor and preserve food.
Name an acid used in a drink.
Write balanced equation to satisfy the following statement:
\[\ce{Acid + Sulphite or bisulphite -> Salt + water + sulphur dioxide}\]
By squeezing lemon on a piece of rock the gas liberated turned lime water milky. which compound is present in the rock?
What are the uses of acids?
Match the substances in Column I with those in Column II.
| Column 1 | Column II | ||
| (a) | Tartaric acid | (i) | soap |
| (b) | Calcium hydroxide | (ii) | curd |
| (c) | Formic acid | (iii) | unripe mangoes |
| (d) | Sodium hydroxide | (iv) | ant’s sting |
| (e) | Lactic acid | (v) | lime water |
Lemon juice and vinegar taste ______ because they contain ______.
