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प्रश्न
Give the name and formula of two : Weak dibasic acids
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उत्तर
(i) Carbonic acid H2CO3
(ii) Oxalic acid (COOH)2
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संबंधित प्रश्न
One of the following does not inject an acidic liquid into the skin through its sting. This is:
(a) honey bee
(b) ant
(c) wasp
(d) nettle leaf hair
The acid produced naturally in our stomach is:
(a) acetic acid
(b) citric acid
(c) hydrochloric acid
(d) sulphuric acid
Explian the following:
Dil. HCl acid is stronger than highly concentrated acetic acid.
Write a balanced reaction for the following conversions (A, B, C, D)
\[\ce{Fe→[A]FeCl2 →[B]FeCO3→[C]Fe(NO3)2→[D]Fe(OH)2}\]
Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed
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 |
______ contain one or more replaceable hydrogen atoms.
Complete the following equation.
ZnO + 2HCl → ______ + ______.
Which is the strongest acid in the following?
The acid which contains four hydrogen atoms ______.
