Blue Litmus is Added to Two Test Tubes a and B Containing Dilute Hcl and Naoh. Answer Respectively. in Which Test Tube a Colour Change Will Be Observed? State the Colour Change and Give Its Reason. - Science
Test tube A contains dil. HCl and test tube B contains dil. NaOH. On adding blue litmus Answer to both the test tubes, the colour of the test tube A will change from blue to red. This is because HCl is acid and acids turn blue litmus to red.