{"id":1983,"date":"2020-11-19T14:37:44","date_gmt":"2020-11-19T14:37:44","guid":{"rendered":"https:\/\/themindpalace.in\/?p=1983"},"modified":"2021-08-26T05:36:03","modified_gmt":"2021-08-26T05:36:03","slug":"acidsbases-and-salts","status":"publish","type":"post","link":"https:\/\/themindpalace.in\/index.php\/2020\/11\/19\/acidsbases-and-salts\/","title":{"rendered":"ACIDS,BASES AND SALTS"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"720\" src=\"https:\/\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide2-3.jpg\" alt=\"\" class=\"wp-image-1987\" srcset=\"https:\/\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide2-3.jpg 960w, https:\/\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide2-3-300x225.jpg 300w, https:\/\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide2-3-768x576.jpg 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">In our daily life we make use of variety of substances, they are differ in taste and physical state. The substances may be either acids ,bases or salts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"has-inline-color has-vivid-red-color\">ACIDS\u00a0<\/span><\/strong> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The word acid comes from the latin word acere which means sour .Examples of acids: vinegar, lemon juice,orange juice, curd,tamarind,amla,black tea,grape etc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"has-inline-color has-vivid-purple-color\">CHARACTERISTICS OF ACIDS<\/span><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Acids are sour in taste<\/li><li>they are corrosive in nature<\/li><li>they are good conductors of electricity<\/li><li>as they allow the passage of current through them.<\/li><li>they turn blue litmus to red.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#d513c2\" class=\"has-inline-color\"><strong>TYPES OF ACIDS<\/strong><\/span><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-7-300x225.jpg\" alt=\"\" class=\"wp-image-1989\" srcset=\"https:\/\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-7-300x225.jpg 300w, https:\/\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-7-768x576.jpg 768w, https:\/\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-7.jpg 960w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#1e7830\" class=\"has-inline-color\">MINERAL ACIDS:-<\/span>these are acids prepared from minerals present in the earths crust.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#299427\" class=\"has-inline-color\">ORGANIC ACIDS:-<\/span>these are acids produced by plants and animals .<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#3f8e33\" class=\"has-inline-color\">WEAK ACIDS:-<\/span>these acids do not completely dissociate in solution.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#278e30\" class=\"has-inline-color\">STRONG ACID:-<\/span>these dissociate completely in solution.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong><span style=\"color:#4122a7\" class=\"has-inline-color\">NAME OF THE ACIDS<\/span><\/strong><\/td><td><strong>FOUND IN<\/strong><\/td><\/tr><tr><td>Lactic acid<\/td><td>curd<\/td><\/tr><tr><td>Oxalic acid<\/td><td>spinach<\/td><\/tr><tr><td>Ascorbic acid<\/td><td>amla<\/td><\/tr><tr><td>Citric acid<\/td><td>lemons<\/td><\/tr><tr><td>Tartaric acid<\/td><td>tamarind<\/td><\/tr><tr><td>Formic acid<\/td><td>Ants sting<\/td><\/tr><tr><td>Carbonic acid<\/td><td>sodas<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"has-inline-color has-vivid-red-color\">CHARACTERISTICS OF BASES<\/span><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>There are bitter to taste <\/li><li>Soapy to touch <\/li><li>Slippery to feel <\/li><li>Water soluble base are called alkalis. <\/li><li>They turn red litmus to blue<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#b21287\" class=\"has-inline-color\"><strong>EXAMPLES OF BASES<\/strong><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Detergents, baking Soda, drain cleaner, Antacid base, Soaps, lime Water, Milk of Magnesia<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#ef147e\" class=\"has-inline-color\">TYPES OF BASES<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Weak base:-these\u00a0 naturally produce less hydroxide ions in solution.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Strong base:-these produce more number of hydroxide ions on dissolving in water<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong><span style=\"color:#35872f\" class=\"has-inline-color\">NAME OF BASE<\/span><\/strong><\/td><td><strong><span style=\"color:#419b2c\" class=\"has-inline-color\">FOUND IN<\/span><\/strong><\/td><\/tr><tr><td>Sodium hydroxide<\/td><td>soaps<\/td><\/tr><tr><td>Magnesium hydroxide<\/td><td>antacids<\/td><\/tr><tr><td>Aluminium hydroxide<\/td><td>deodorants<\/td><\/tr><tr><td>Ammonium hydroxide<\/td><td>Window cleaners<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#cd28b7\" class=\"has-inline-color\"><strong>INDICATORS<\/strong><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is a special chemical that changes its colour to indicate the presence of\u00a0 a chemical substance. It is\u00a0 used to confirm the presence of an acid, a base\u00a0 or a neutral solution.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#881865\" class=\"has-inline-color\">NATURAL INDICATORS:<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"has-inline-color has-vivid-purple-color\">1.LITMUS:<\/span> It is extracted from lichens. It is available in the form of strips or in solution.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"has-inline-color has-vivid-purple-color\">2.TURMERIC :<\/span> It remains yellow in neutral and acidic solutions but turns red in base.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"has-inline-color has-vivid-purple-color\">3.CHINA ROSE:<\/span> It turns acidic solutions to pink and basic solution to green.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"has-inline-color has-vivid-purple-color\">4.RED CABBAGE:<\/span> It turns acidic solutions to red and basic solution to blue.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#f2216a\" class=\"has-inline-color\">OTHER INDICATORS<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"has-inline-color has-vivid-red-color\">1.METHYL ORANGE <\/span>: it gives pinkish red colour with acids and yellow colour with bases. <span class=\"has-inline-color has-vivid-red-color\">2.PHENOLPHTHALEIN:<\/span> It is an acid \u2013base indicator . It is colourless in acidic but turns pink in alkali solutions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#2e2be2\" class=\"has-inline-color\"><strong>NEUTRALIZATION<\/strong><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It is the reaction between an acid and a base which results in the formation of salt and water.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Acid +Base = Salt + Water .<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Example :HCl+NaOH= NaCl+ H2<sub>O<\/sub><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#7d0d6b\" class=\"has-inline-color\"><strong>NEUTRALISATION IN EVERYDAY LIFE<\/strong><\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#1a2bb0\" class=\"has-inline-color\">1.INDIGESTION:<\/span> Too much acid in stomach causes indigestion. It is neutralized by taking an antacid like milk of magnesia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#1e27a9\" class=\"has-inline-color\">2.ANT STING <\/span><span class=\"has-inline-color has-vivid-cyan-blue-color\">:<\/span>When an ant bites, it injects formic acid into skin .The effect is neutralised by rubbing moist baking soda .<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color:#212eb9\" class=\"has-inline-color\">3. SOIL TREATMENT:<\/span> when the soil is too acidic ,it is neutralized by treating with quick lime .<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In our daily life we make use of variety of substances, they are differ in taste and physical state. The substances may be either acids ,bases or salts. ACIDS\u00a0 The word acid comes from&#46;&#46;&#46;<\/p>\n","protected":false},"author":3,"featured_media":1987,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[116,475,28],"tags":[234,235,233],"class_list":["post-1983","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-7th-class-ncert-syllabus","category-posts-in-english","category-science","tag-7th-std-acids-bases-and-salts","tag-7th-std-ncert-science-acids-bases-and-salts","tag-7th-std-science-acids-bases-and-salts"],"cp_meta_data":{"_edit_lock":["1629956163:2"],"_last_editor_used_jetpack":["block-editor"],"_thumbnail_id":["1987"],"_jetpack_related_posts_cache":["a:1:{s:32:\"8f6677c9d6b0f903e98ad32ec61f8deb\";a:2:{s:7:\"expires\";i:1781681502;s:7:\"payload\";a:3:{i:0;a:1:{s:2:\"id\";i:1156;}i:1;a:1:{s:2:\"id\";i:1752;}i:2;a:1:{s:2:\"id\";i:1991;}}}}"],"_edit_last":["2"]},"jetpack_featured_media_url":"https:\/\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide2-3.jpg","jetpack-related-posts":[{"id":1156,"url":"https:\/\/themindpalace.in\/index.php\/2020\/10\/09\/separation-of-substances\/","url_meta":{"origin":1983,"position":0},"title":"SEPARATION OF SUBSTANCES","author":"Nancy Diana","date":"October 9, 2020","format":false,"excerpt":"Summary of separation of substances Summary In our daily life, there are many instances when we notice a substance being separated from a mixture of materials. Example Tea leaves are separated from the liquid with a strainer, while preparing tea. Milk or curd is churned to separate the butter. Why\u2026","rel":"","context":"In &quot;6th Class&quot;","block_context":{"text":"6th Class","link":"https:\/\/themindpalace.in\/index.php\/category\/ncert-school-syllabus\/6th-class-ncert-syllabus\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/10\/Slide1-7.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/10\/Slide1-7.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/10\/Slide1-7.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/10\/Slide1-7.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1752,"url":"https:\/\/themindpalace.in\/index.php\/2020\/11\/09\/hard-water-and-soft-water\/","url_meta":{"origin":1983,"position":1},"title":"HARD WATER AND SOFT WATER","author":"Nancy Diana","date":"November 9, 2020","format":false,"excerpt":"Summary of hard water and soft water Exercise of hard and soft water Summary Hard Water: If it contains dissolved salts of chlorides, sulphates and bicarbonates of calcium and magnesium. Example: water of some wells, sea water etc. Soft Water :Water that is free from calcium and magnesium salts that\u2026","rel":"","context":"In &quot;7th Class&quot;","block_context":{"text":"7th Class","link":"https:\/\/themindpalace.in\/index.php\/category\/ncert-school-syllabus\/7th-class-ncert-syllabus\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-4.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-4.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-4.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-4.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1991,"url":"https:\/\/themindpalace.in\/index.php\/2020\/11\/20\/elements-compounds-and-mixtures\/","url_meta":{"origin":1983,"position":2},"title":"ELEMENTS, COMPOUNDS AND MIXTURES","author":"Nancy Diana","date":"November 20, 2020","format":false,"excerpt":"Matters available in nature consist of molecules or compound molecules. When these compound molecules are subdivided, elements are obtained. The smallest unit of the element is called an atom. Depending on the atoms present in the substances, they are classified as elements, compounds, and mixtures. Elements Elements are made up\u2026","rel":"","context":"In &quot;5th Class&quot;","block_context":{"text":"5th Class","link":"https:\/\/themindpalace.in\/index.php\/category\/ncert-school-syllabus\/5th-class-ncert-syllabus\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-8.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-8.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-8.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/11\/Slide1-8.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1190,"url":"https:\/\/themindpalace.in\/index.php\/2020\/10\/13\/fibre-to-fabric\/","url_meta":{"origin":1983,"position":3},"title":"FIBRE TO FABRIC","author":"Nancy Diana","date":"October 13, 2020","format":false,"excerpt":"Summary of fibre to fabric Summary Clothing is very important to human beings. The importance of clothes are They protect from heatThey protect from coldThey make us look nice and decent. FIBRE A material which is available in the form of thin and continuous strand is called fibre. There are\u2026","rel":"","context":"In &quot;7th Class&quot;","block_context":{"text":"7th Class","link":"https:\/\/themindpalace.in\/index.php\/category\/ncert-school-syllabus\/7th-class-ncert-syllabus\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/10\/Slide1-9.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/10\/Slide1-9.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/10\/Slide1-9.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/10\/Slide1-9.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":2124,"url":"https:\/\/themindpalace.in\/index.php\/2020\/12\/04\/light\/","url_meta":{"origin":1983,"position":4},"title":"Light","author":"Nancy Diana","date":"December 4, 2020","format":false,"excerpt":"Summary of light Solved exercise of light Summary We need light for everything probably except when we sleep. The sun is the earth\u2019s primary source of light. light is essential for the existence of life. Without light we neither get food nor can see anything. The visual ability of human\u2026","rel":"","context":"In &quot;7th Class&quot;","block_context":{"text":"7th Class","link":"https:\/\/themindpalace.in\/index.php\/category\/ncert-school-syllabus\/7th-class-ncert-syllabus\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/12\/Slide2-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/12\/Slide2-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/12\/Slide2-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2020\/12\/Slide2-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":2711,"url":"https:\/\/themindpalace.in\/index.php\/2021\/01\/18\/food-health\/","url_meta":{"origin":1983,"position":5},"title":"Food -Health","author":"Nancy Diana","date":"January 18, 2021","format":false,"excerpt":"Food, substance consisting essentially of protein, carbohydrate, fat, and other nutrients used in the body of an organism to sustain growth","rel":"","context":"In &quot;4th Class&quot;","block_context":{"text":"4th Class","link":"https:\/\/themindpalace.in\/index.php\/category\/ncert-school-syllabus\/4th-class-ncert-syllabus\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2021\/01\/Slide1-9.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2021\/01\/Slide1-9.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2021\/01\/Slide1-9.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/themindpalace.in\/wp-content\/uploads\/2021\/01\/Slide1-9.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/themindpalace.in\/index.php\/wp-json\/wp\/v2\/posts\/1983","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/themindpalace.in\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/themindpalace.in\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/themindpalace.in\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/themindpalace.in\/index.php\/wp-json\/wp\/v2\/comments?post=1983"}],"version-history":[{"count":6,"href":"https:\/\/themindpalace.in\/index.php\/wp-json\/wp\/v2\/posts\/1983\/revisions"}],"predecessor-version":[{"id":1996,"href":"https:\/\/themindpalace.in\/index.php\/wp-json\/wp\/v2\/posts\/1983\/revisions\/1996"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/themindpalace.in\/index.php\/wp-json\/wp\/v2\/media\/1987"}],"wp:attachment":[{"href":"https:\/\/themindpalace.in\/index.php\/wp-json\/wp\/v2\/media?parent=1983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/themindpalace.in\/index.php\/wp-json\/wp\/v2\/categories?post=1983"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/themindpalace.in\/index.php\/wp-json\/wp\/v2\/tags?post=1983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}