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प्रश्न
HCl, HNO3, C2H5OH, C6H12O6 all contain H atoms but only HCl and HNO3 show acidic character. Why?
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उत्तर
It is because HCl and HNO3 ionize in aqueous solution whereas ethanol and glucose do not ionize in aqueous solution.
संबंधित प्रश्न
Why do HCl, H2SO4, HNO3, etc., show acid character in aqueous solutions while solutions of compounds like C6H12O6 (glucose) and C2H5OH (alcohol) do not show acidic character?
The acid produced naturally in our stomach is:
(a) acetic acid
(b) citric acid
(c) hydrochloric acid
(d) sulphuric acid
Name a sodium compound which is a constituent of many dry soap powders.
Give two examples of the following:
hydracids
Give a balanced equation for reaction of nitrogen dioxide with water.
How is an acid prepared from a non metal and a base from a metal? Give equation.
The preparation of Lead sulphate from Lead carbonate is a two-step process. (Lead sulphate cannot be prepared by adding dilute Sulphuric acid to Lead carbonate.)
Write the equation for the reaction that will take place when this first step is carried out.
The preparation of Lead sulphate from Lead carbonate is a two-step process. (Lead sulphate cannot be prepared by adding dilute Sulphuric acid to Lead carbonate.)
Why is the direct addition of dilute sulphuric acid to Lead carbonate an impractical method of preparing Lead sulphate?
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 → ______.
