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प्रश्न
Give one example in the following case:
A hydroxide which is insoluble in water.
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उत्तर १
Copper hydroxide
उत्तर २
Aluminium hydroxide [Al(OH3)]
संबंधित प्रश्न
What do you understand by an alkali?
Give one example in the following case:
A base which does not contain a metal ion.
Write the balanced equation for the reaction of:
A named acid and a named alkali.
Chemical formula of calcium oxide is _______
All bases are alkalis.
Write any four uses of bases.
Boojho, Paheli and their friend Golu were provided with a test tube each containing China rose solution which was pink in colour. Boojho added two drops of solution ‘A’ in his test tube and got dark pink colour. Paheli added 2 drops of solution ‘B’ to her test tube and got green colour. Golu added 2 drops of solution ‘C’ but could not get any change in colour. Suggest the possible cause for the variation in their results.
Which of the following pairs are weak bases?
The nature of toothpaste commonly used is ______ in nature.
A small amount of copper oxide was taken in a beaker and dilute hydrochloric acid was added with continuous stirring of the solution. Name the compound formed and state the colour of its solution. Write the balanced chemical equation for the reaction that occurs. Based on the reaction, state the nature (acidic/basic) of copper oxide.
