Advertisements
Advertisements
प्रश्न
HCl, HNO3, C2H5OH, C6H12O6 all contain H atoms but only HCI and HNO3 show acidic character. Why?
उत्तर
Although C2H5OH and C6H12O6 contain hydrogen atoms, their aqueous solutions lack acidity due to the absence of hydrogen ions [H+(aq) ions] during dissolution.
When dissolved in water, only HCl and HNO3 create hydrogen ions [H+(aq) ions]3 and have an acidic nature.
\[\ce{HCl_{( aq)}-> H+_{( aq)} + Cl-_{( aq)}}\]
\[\ce{HNO3_{( aq)}-> H+_{( aq)}+ NO3-_{( aq)}}\]
संबंधित प्रश्न
State the inference drawn from the following observations:
On carrying out the flame test with a salt P, a brick red flame was obtained. What is the cation in P?
What would you observe when blue litmus is introduced into a solution of hydrogen chloride gas?
What would you observe when red litmus paper is introduced in Caustic soda solution?
Two solutions A and B have pH values of 2 and 9 respectively which one of these two will give a pink colour with phenolphthalein indicator?
Fill in the blank
pH scale was introduced by _________ in 1909.
Select the correct answer from the choices a,b,c and d which are given.Write only the letter corresponding to the correct answer.
A particular solution contains molecules and ions of the solute so it is a
Write the approximate colour of the following sample with the universal indicator: Soap Solution
When you use universal indicator, you see that solutions of different acids produce different colours. Indeed, solution of the same acid with different concentrations will also give different colours. Why?
State the change noticed when blue litmus and red litmus is introduced in the following solution:
Na2CO3 solution
Complete the following table and write your observations.
Hydrogen sulphide | Ammonia | Sulphur dioxide | Hydrogen chloride | |
Shake the gas with red litmus solution |