Is NH3 is a weak base and H2CO3 is a strong acid?<\/p>\n\n\n\n
The correct answer and explanation is:<\/strong><\/mark><\/p>\n\n\n\n Correct Answer:<\/strong><\/p>\n\n\n\n NH\u2083 (ammonia) is a weak base, and H\u2082CO\u2083 (carbonic acid) is a weak acid.<\/strong><\/p>\n\n\n\n Explanation:<\/strong><\/p>\n\n\n\n Ammonia (NH\u2083) is classified as a weak base<\/strong>. This is because it does not completely dissociate or accept protons (H\u207a ions) when dissolved in water. Instead, it establishes an equilibrium with water molecules:<\/p>\n\n\n\n NH\u2083 + H\u2082O \u21cc NH\u2084\u207a + OH\u207b<\/strong><\/p>\n\n\n\n In this reaction, only a small percentage of ammonia molecules react with water to form ammonium ions (NH\u2084\u207a) and hydroxide ions (OH\u207b). Since this reaction does not go to completion and the base does not fully ionize, ammonia is considered a weak base.<\/p>\n\n\n\n On the other hand, H\u2082CO\u2083 (carbonic acid)<\/strong> is also a weak acid<\/strong>, not a strong acid. When carbonic acid dissolves in water, it partially dissociates into hydrogen ions and bicarbonate ions:<\/p>\n\n\n\n H\u2082CO\u2083 \u21cc H\u207a + HCO\u2083\u207b<\/strong><\/p>\n\n\n\n This dissociation also exists in equilibrium and does not go to completion, which is characteristic of weak acids. Furthermore, H\u2082CO\u2083 can undergo a second, weaker dissociation:<\/p>\n\n\n\n HCO\u2083\u207b \u21cc H\u207a + CO\u2083\u00b2\u207b<\/strong><\/p>\n\n\n\n Again, both dissociation steps are incomplete, confirming the weak acidic nature of carbonic acid. In contrast, strong acids<\/strong>, like hydrochloric acid (HCl), sulfuric acid (H\u2082SO\u2084), or nitric acid (HNO\u2083), dissociate completely in solution.<\/p>\n\n\n\n Therefore, both NH\u2083 and H\u2082CO\u2083 are weak in their respective categories. The statement that NH\u2083 is a weak base is true. However, the claim that H\u2082CO\u2083 is a strong acid is false. Understanding acid and base strength is important for predicting reaction direction and the pH of solutions.<\/p>\n","protected":false},"excerpt":{"rendered":" Is NH3 is a weak base and H2CO3 is a strong acid? The correct answer and explanation is: Correct Answer: NH\u2083 (ammonia) is a weak base, and H\u2082CO\u2083 (carbonic acid) is a weak acid. Explanation: Ammonia (NH\u2083) is classified as a weak base. This is because it does not completely dissociate or accept protons (H\u207a […]<\/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-31175","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31175","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=31175"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31175\/revisions"}],"predecessor-version":[{"id":31176,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31175\/revisions\/31176"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=31175"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=31175"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=31175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}