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प्रश्न
Define an acid.
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उत्तर
An acid is defined as a compound which when dissolved in water produces hydronium ion (H3O+), the only positively charged ion and a negative ion. At first the acid furnishes hydrogen ion (H+) in aqueous solution but this H+ ion combines with a water molecule to form Hydronium ion.
For example : acetic acid, sulphuric acid, nitric acid.
CH3COOH + H2O → H3O+ + CH3COO-
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संबंधित प्रश्न
Which gas is usually liberated when an acid reacts with a metal? How will you test for the presence of this gas?
What is meant by strong acids and weak acids? Classify the following into strong acids and weak acids:
HCI, CH3 COOH, H2 SO 4, HNO3, H2 CO3 , H2 SO3
When a piece of limestone reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then a white precipitate Y is formed. On passing excess of gas X, the white precipitate dissolves forming a soluble compound Z.
- What are X, Y and Z?
- Write equations for the reactions which take place:
- When limestone reacts with dilute HCl.
- When gas X reacts with lime water to form white precipitate Y.
- When excess of gas X dissolves white precipitate Y to form a soluble compound Z.
Which chemical is injected into the skin of a person during an ant's sting?
How can the effect of these stings be neutralised?
Do basic solutions also have H+(aq)? Why are they basic?
Write balanced equation to satisfy the following statement:
\[\ce{Acid + Sulphite or bisulphite -> Salt + water + sulphur dioxide}\]
Write balanced equation to satisfy the following statement:
\[\ce{Acid + sulphide -> Salt + Hydrogen sulphide}\]
Which acid is used for getting chloride salt?
Hydrochloric Acid reacts with metal bicarbonates to give ______.
Complete the following equation.
H+ + H2O → ______.
