Chemistry
Answer
Dilute HCl is a stronger acid than concentrated H2CO3
Reason — HCl dissociates almost completely in aqueous solution and produces a high concentration of H+ ions and Cl- ions, hence is a strong acid. Whereas, H2CO3 is a weak acid because it dissociates partially yielding H+ ions and bicarbonate HCO3- ion and hence, contains ions as well as molecules. Therefore, dil. HCl is a stronger acid than conc. H2CO3.
Related Questions
Differentiate between (i) strong and weak acid (ii) strong and weak alkali with suitable examples and ionic equations.
State why the basicity of acetic acid is one and acidity of calcium hydroxide is two.
Give three reasons with equations wherever required, why Sulphuric acid is a dibasic acid.
Name the ions formed when — HCl; HNO3; H2SO4; CH3COOH; NaOH and NH4OH ionise in aq. soln.