st","extracted_subject":"CHEMISTRY","extracted_chapter":"IONIC EQUILIBRIUM","extracted_topic":"IONIZATION OF ACIDS AND BASES ","questionPreviewUrl":"https://cdn.pureessence.tech/question-previews/packed_canvases/canvas_1144.png?top_left_x=0&top_left_y=0&width=532&height=291&app=solveeit"},"seo_metadata":{"keywords":[]},"doubt_solver_data":{"concept_summary":[]},"embeddings":[],"is_hidden":false,"_id":"66d23e69425d76b7ab3176d0","slug":"at-certain-temperature-ksubwsub-for-water-4-10sup1","content":"At certain temperature K_w for water 4 × 10^–14 which of the following is incorrect for pure water at the given temperature?\n\nlog 2 = 0.3","options":[{"_id":"68a38a5a7f15af4716b87da5","text":"pH = 6.7 and water is acidic","sequence":0,"isCorrect":true},{"_id":"68a38a5a7f15af4716b87da6","text":"pH = 6.7 and water is neutral","sequence":1,"isCorrect":false},{"_id":"68a38a5a7f15af4716b87da7","text":"pOH = 6.7 and water is neutral","sequence":2,"isCorrect":false},{"_id":"68a38a5a7f15af4716b87da8","text":"pH + pOH = 13.4","sequence":3,"isCorrect":false}],"correct_answer":"pH = 6.7 and water is acidic","explanation":"**;**[H⁺] [OH^–] = K_w = 4 × 10^–14\n\nIn pure water [H⁺] = [OH^–]\n\n\\\\ [H⁺] = 2 × 10^–7\n\nor pH = 7 – log 2 = 7 – 0.3 = 6.7 = pOH\n\npure water is neutral","question_type":"single_choice","appeared_in":[],"created_at":"2024-08-30T21:49:29.617Z","__v":0,"vector_store_id":"8eb9f2b7-6a94-4949-956e-e68e9fccde27","updated_at":"2024-08-30T21:49:29.617Z","isStarred":false},"params":{"questionSlug":"at-certain-temperature-ksubwsub-for-water-4-10sup1"}}]}]]

Question: At certain temperature K<sub>w</sub> for water 4 × 10<sup>–14</sup> which of the following is incorr...

Solution