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प्रश्न
Choosing the correct words given in brackets, complete the sentence given below:
An acid is a compound which, when dissolved in water gives ______ ( hydronium / hydroxide) ions as the only ______ (positive/negative) ions.
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उत्तर
An acid is a compound which, when dissolved in water gives hydronium ions as the only positive ions.
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संबंधित प्रश्न
Write balanced equation to satisfy the following statement:
\[\ce{Acid + Base -> Salt + water}\]
Out of three metals P, Q and R, P is less reactive than Q and R is more reactive than P and Q both. Suggest an activity to arragne P, Q and R in order of their decreasing reactivity.
Match the pairs.
| Group A | Group B |
| 1. Tamarind | a. Acetic acid |
| 2. Curd | b. Citric acid |
| 3. Lemon | c. Tartaric acid |
| 4. Vinegar | d. Lactic acid |
Choose the correct answer from the options given below
Which of them occurs in solid state?
If iron reacts with dilute sulphuric acid, what will be the products?
Most of the acids are not soluble in water.
Which of the following is acidic in nature?
State whether the following statement is true or false. Correct the false statement.
A compound if acidic will turn all indicators red.
Fill in the cross word given in figure with the help of the clues provided.
Across
(2) The solution which does not change the colour of either red or blue litmus.
(4) Phenolphthalein gives pink colour in this type of solution.
(7) Colour of blue litmus in lemon juice.
Down
(1) It is used to test whether a substance is acidic or basic.
(3) It is a natural indicator and gives pink colour in basic solution.
(5) Nature of ant’s sting.
(6) It is responsible for the increase in temperature during a neutralisation reaction.
Complete the following equation.
H+ + H2O → ______.
