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Acids Bases and Salts class 10 Notes Science | myCBSEguide | CBSE Papers & NCERT Solutions May 26, �� Chart and Diagram Slides for PowerPoint - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects. Our new CrystalGraphics Chart and Diagram Slides for PowerPoint is a collection of over impressively designed data-driven chart and editable diagram s guaranteed to impress any audience. We have learnt that acids turn blue litmus red and bases turn red litmus blue. Let us see what happens when an acid is mixed with a base. We are going to use an indicator you have not used so far. It is called phenolphthalein. Activity To be demonstrated by the teacher in the class Fill one fourth of a test tube with dilute hydrochloric acid. Acids Bases Salts Acids and Bases in the Laboratory Indicators An indicator tells us whether a substance is acidic or basic in nature, by the change in colour. Common Indicators An acid turns blue litmus red and a base turns red litmus blue.
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Show More. No Downloads. Views Total views. Actions Shares. No notes for slide. Sandeep ppt on acids, bases and salts for vii 1. These substances taste sour because they contain acids. The chemical nature of such substances is acidic. The word acid comes from the Latin word acere which mean sour.

The acids in these substances are nature acids. All alkalis are bases but all bases are not alkalis. What is its taste? Since, it does not taste sour it means, that it has no acids in it. It is bitter in taste. If you rub the solution between fingers, it feels soapy on touching are know as base.

The nature of such substances is aid to be basic. It is extracted from lichens. It has a mauve purple colour in distilled water. When added to an acidic solution, it turns red and when added to basic solution it turns blue. It will be in the form of solution or in the form of strips of paper, known as litmus paper. Generally, it is available as red and blue litmus paper.

When an acidic solution is mixed with a basic solution, both the solutions neutralise the effect of each other. Salt and water are produced in this process with the evolution of heat. You just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later. And, best of all, most of its cool features are free and easy to use. You can use PowerShow. Or use it to find and download high-quality how-to PowerPoint ppt presentations with illustrated or animated slides that will teach you how to do something new, also for free.

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