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Define a Base. - Chemistry

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प्रश्न

Define a base.

एका वाक्यात उत्तर
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उत्तर

A base is defined as a chemical compound which when reacts with hydronium ion or H+ ions furnished by an acid to form salt and water only.
For example : CuO, Mg(OH)2

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पाठ 3: Study Of Acids, Bases and Salts - Exercise 1 [पृष्ठ ७०]

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फ्रँक Chemistry Part 2 [English] Class 10 ICSE
पाठ 3 Study Of Acids, Bases and Salts
Exercise 1 | Q 3.1 | पृष्ठ ७०

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संबंधित प्रश्‍न

Name the gas evolved when dilute HCl reacts with sodium hydrogencarbonate. How is it recognised?


What happens to temperature of the solution, when an acid is neutralised?


One of the following does not inject an acidic liquid into the skin through its sting. This is:
(a) honey bee
(b) ant
(c) wasp
(d) nettle leaf hair


It has been found that rubbing vinegar on the stung area of the skin of a person gives him relief. The person has been stung by:
(a) wasp
(b) ant
(c) honey bee
(d) nettle leaf hair


Name a sodium compound which is a constituent of many dry soap powders.


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Why is the direct addition of dilute sulphuric acid to Lead carbonate an impractical method of preparing Lead sulphate?


Name the positive ion formed When an acid is dissolved in water.


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.


An acid is ______.


Complete the following equation.

Ca(OH)2 + ______ → ______ + H2O


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