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Acids bases and salts | NCERT Chemistry 10th | Study Thoughts
The NCERT solutions for Acids, Bases, and Salts chapter provided here are prepared by top experts at Embibe to help you in your Class 10 Chemistry preparation. Science is a very scoring subject in CBSE Class 10 and Chapter 2 (Acid, Bases, and Salts) is one of the important chapters. Thus, it is very crucial that you solve all the questions from this chapter. With the help of these NCERT Solutions for Class 10 Science Chapter 2, students can easily complete their assignments and score well in the Class 10 board exam. Practice Acid, Bases and Salts Sample Questions. NCERT Solutions For Class Acids bases and salts. Acid Base and Salt Notes for Chapter 5 Class7 Science. Waves Goodbye Body Polish Lush Bath New Fragrances Hyaluronic Acid Our Body Say Hello Bath And Body Works Glowing Skin.� Notes of NCERT Syllabus Chapter: Acids Bases and Salts. Indepth notes along with worksheets and NCERT Solutions for Class 7. Sterilize It. Sterilize-It is a liquid cold sterilant 12pH water technology of an all natural non-corrosive water-based solution that is harmless to skin, eyes and mucus membranes. You can also Download NCERT Solutions for class 10 Science in Hindi to help you to revise complete Syllabus and score more marks in your examinations. Question 2. Why should curd and other sour substances not be kept in containers made up of brass or copper? Answer.� Question 4. A metallic compound A� reacts with dilute hydrochloric acid to produce effervescence.� Answer. Neutralisation reaction is the reaction between an acid and a base dissolved in aqueous solution to form salt and water. Acid + Base ? Salt + Water HCl(aq) + NaOH(aq) ? NaCl(aq) + H2O(l) HNO3(aq) + KOH(aq) ? KNO3(aq) + H2O(l) Both NaCl and KNO3 are neutral in nature. They neither change blue litmus red nor red litmus blue. That is why the reaction is called neutralisation reaction.

Activity 2. In acidic PH it turns red. Red litmus paper: It turns blue in basic PH. Phenolphthalein: Pronunciation: L Silent It is a colourless reagent. It turns pink in basic PH. Methyl Orange: It is a narrow range PH indicator. At PH below 3. So, it turns blue litmus into red and gives a red solution with methyl orange.

Similarly, Stronger bases like sodium hydroxide, calcium hydroxide, potassium hydroxide, magnesium hydroxide, and ammonium hydroxide turn the red litmus into the blue.

With phenolphthalein, they give a pink solution and with methyl orange they give a yellow solution. Acetic acid: The 1 M solution has a PH of 2. So It turns Blue litmus Red. Phenolphthalein indicates only basic PH so there is no change in the colour with phenolphthalein. It turns methyl orange into the red. Different PH indicators give different colour with the acids and bases. An acid turns the blue litmus paper red while a base reveres this. Bases give red colour with phenolphthalein while with methyl orange it gives a yellow solution.

Similarly, acids give red colour with methyl orange. We use indicators in an acid-base reaction to finding the endpoint. After completion of a reaction, any addition of a reactant changes the PH of the solution. If a suitable PH indicator is present in the solution, it changes the colour which marks the endpoint. Next: Change in smell and color of onion and vanilla with acid and bases.

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Procedure: Activity 2. Explanation: Various reagents mentioned here are PH indicators. We find its use them in chemistry practicals. Leave a Comment Cancel Reply Your email address will not be published.

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