Which substance is a base? HCOOH RbOH H2CO3 NaNO3<\/p>\n\n\n\n
The correct answer and explanation is:<\/strong><\/mark><\/p>\n\n\n\n The substance that is a base among the options is RbOH (rubidium hydroxide)<\/strong>.<\/p>\n\n\n\n In chemistry, substances are classified as acids<\/strong>, bases<\/strong>, or salts<\/strong> based on their behavior in water, particularly in relation to the concentration of hydrogen ions (H\u207a) and hydroxide ions (OH\u207b) they produce.<\/p>\n\n\n\n RbOH is a strong base<\/strong>. It is an alkali metal hydroxide, and like other Group 1 metal hydroxides (e.g., NaOH, KOH), it dissociates completely in water<\/strong> to produce Rb\u207a and OH\u207b ions: RbOH\u2192Rb++OH\u2212\\text{RbOH} \\rightarrow \\text{Rb}^+ + \\text{OH}^-<\/p>\n\n\n\n The presence of OH\u207b ions makes it basic. It increases the pH of a solution and can neutralize acids.<\/p>\n\n\n\n Formic acid is a weak acid<\/strong>. It only partially ionizes in water: HCOOH\u21ccH++HCOO\u2212\\text{HCOOH} \\rightleftharpoons \\text{H}^+ + \\text{HCOO}^-<\/p>\n\n\n\n It donates protons (H\u207a), which is characteristic of acids.<\/p>\n\n\n\n Carbonic acid is also a weak acid<\/strong>, formed when carbon dioxide dissolves in water: H2CO3\u21ccH++HCO3\u2212\\text{H}_2\\text{CO}_3 \\rightleftharpoons \\text{H}^+ + \\text{HCO}_3^-<\/p>\n\n\n\n It dissociates to release hydrogen ions, lowering the pH.<\/p>\n\n\n\n Sodium nitrate is a neutral salt<\/strong> formed from the reaction of a strong base (NaOH) and a strong acid (HNO\u2083). It does not<\/strong> act as an acid or base in solution. It dissociates into Na\u207a and NO\u2083\u207b ions, neither of which affects the pH significantly.<\/p>\n\n\n\n Among the given options, RbOH<\/strong> is the only base<\/strong>. It produces hydroxide ions in solution and is classified as a strong base due to its complete dissociation.<\/p>\n","protected":false},"excerpt":{"rendered":" Which substance is a base? HCOOH RbOH H2CO3 NaNO3 The correct answer and explanation is: The substance that is a base among the options is RbOH (rubidium hydroxide). Explanation (Approx. 300 words): In chemistry, substances are classified as acids, bases, or salts based on their behavior in water, particularly in relation to the concentration of […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-17403","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/17403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=17403"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/17403\/revisions"}],"predecessor-version":[{"id":17404,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/17403\/revisions\/17404"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=17403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=17403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=17403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\n\n\nExplanation (Approx. 300 words):<\/h3>\n\n\n\n
1. RbOH (Rubidium Hydroxide)<\/strong> \u2013 Base<\/strong> \u2705<\/h4>\n\n\n\n
2. HCOOH (Formic Acid)<\/strong> \u2013 Acid<\/strong><\/h4>\n\n\n\n
3. H\u2082CO\u2083 (Carbonic Acid)<\/strong> \u2013 Acid<\/strong><\/h4>\n\n\n\n
4. NaNO\u2083 (Sodium Nitrate)<\/strong> \u2013 Salt<\/strong><\/h4>\n\n\n\n
\n\n\n\nConclusion:<\/h3>\n\n\n\n