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प्रश्न
What is the difference between : An alkali and a metal hydroxide?
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उत्तर
| An alkali | Metal hydroxide |
| An alkali is a basic hydroxide which when dissolved in water produces hydroxyl (OH-) ions as the only negatively charged ions. | Metal hydrooxide are generally bases which have a metal atom bonded to a hydroxide ion (OH-) |
| Example : NaOH, KOH | Examples: Mg(OH)2 |
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संबंधित प्रश्न
Name an indicator which is pink in alkaline solution but turns colourless in acidic solution.
Name one natural source of the following acid:
Citric acid
Name one natural source of the following acid:
Oxalic acid
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.
Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
Write the chemical name from the given formula.
H2SO4
Solution A is strong acid B weak acid C strong alkali.
Which solution contains solute molecules in addition to water molecules?
Acidic or basic solutions are good conductors of electricity. Justify your answer.
The acid which contains four hydrogen atoms ______.
Name the acid present in grapes.
