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प्रश्न
Define Acid.
Define the following term:
Acid
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उत्तर
An acid is a compound which when dissolved in water produces hydronium ion(H3O+), the only positively charged
ion and a negative ion.
संबंधित प्रश्न
A solution turns red litmus blue, its pH is likely to be ______.
Name the source from which litmus solution is obtained. What is the use of this solution?
What is produced if an acid is added to a base?
Write any two important uses of bases.
Give two examples of the following:
hydracids
Name an acid used to flavor and preserve food.
You are supplied with five solutions: A, B, C, D and E with pH values as follows: A = 1.8, B = 7, C = 8.5, D = 13, and E = 5
Classify these solutions as neutral, slightly or strongly acidic and slightly or strongly alkaline.
Which solution would be most likely to liberate hydrogen with magnesium powder. Give a word equation for each reaction.
State one observation for each of the following :
A small piece of zinc is added to dilute hydrochloric acid
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 | -- | -- | |
The label on the bottle of chemical is spoiled. How will you find whether the chemical is acidic or not?
Choose the correct answer from the options given below
Which of them occurs in solid state?
Give the reaction of acid with chlorides. State the conditions under which they react.
Acids are ________ in taste.
Since metal carbonate and metal bicarbonate are basic, they react with acids to give salt and water with the liberation of ______.
Which of the following is not a mineral acid?
Paheli observed that most of the fish in the pond of her village were gradually dying. She also observed that the waste of a factory in their village is flowing into the pond which probably caused the fish to die.
- Explain why the fish were dying.
- If the factory waste is acidic in nature, how can it be neutralised?
Name the acid present in the given table.
Complete the following equation.
Mg+ ______ → ______ + H2.
A metal 'M' on reacting with dilute acid liberates a gas 'G'. The same metal also liberates gas 'G' when reacts with a base.
- Write the name of gas 'G'.
- How will you test the presence of this gas?
- Write chemical equations for the reactions of the metal with (1) an acid and (2) a base.
