https://www.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:week-1/x37589313f9a4c197:acids-bases-and-salts/e/acids-and-bases-in-the-laboratory 2026-04-09T13:10:38.304888012Z Acids and Bases in the Laboratory Let's solve some questions! vibhor exercise https://www.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:week-1/x37589313f9a4c197:acids-bases-and-salts/e/litmus-test 2026-03-06T14:50:39.290513618Z Litmus test Let's practice problems involving testing whether a given substance is acidic or basic using litmus solution. Chaitra exercise https://www.khanacademy.org/science/mh-grade-8-science/x0f256b8de9c7cf34:introduction-to-acid-and-base/x0f256b8de9c7cf34:indicators/e/red-rose-and-turmeric-as-indicators 2026-04-09T13:10:38.304888012Z Red Rose and Turmeric as Indicators From kitchen spice to garden petals—explore how everyday things like turmeric and red roses reveal the hidden nature of substances! Bitasta Datta exercise https://www.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:week-1/x37589313f9a4c197:neutralisation-reaction/e/neutralization-reactions 2026-04-08T00:16:02.937952483Z Neutralization Reactions Lets answer some questions. Shankar R exercise