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प्रश्न
Give one example in the following case:
A hydrogen containing compound which is not an acid.
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उत्तर १
Ammonia
उत्तर २
Methane (CH4)
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संबंधित प्रश्न
Dorji has a few bottles of soft drink in his restaurant. But, unfortunately, these are not labelled. He has to serve the drinks on the demand of customers. One customer wants acidic drink, another wants basic and third one wants neutral drink. How will Dorji decide which drink is to be served to whom?
What happens to the H+ ions, of the solution, when an acid is neutralised?
Give two examples of the following:
oxy-acid
What is the difference between an alkali and a metal hydroxide?
Do basic solutions also have H+(aq)? Why are they basic?
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 | -- | -- | |
Define an acid.
State whether the following statement is true or false. Correct the false statement.
All substances are either acidic or basic.
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.
Acidic or basic solutions are good conductors of electricity. Justify your answer.
