Answer to: Which of the following ions is most acidic? A) C_6H_5NH_3^+. B) C_6H_5CH_2NH_3^+. C) (CH_3)_2CHNH_3^+. D) CH_3CH_2NH_3^+. E) CH_3NH_3^+...
Which of the following is more acidic? a. 1 M HCl b. 1 M HC2H3O2 c. 1 M H2SO4 d. 1 M NH4Cl Find the weaker acid in the pair H_2SO_3 and H_2SO_4. Which one is stronger acid, H2SO4 or H2SO3? Explain briefly. What is the name of H2SO4 acid?
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Question. Which of the following is the correct decreasing order of acidic strength of(i) methanoic acid (ii) ethanoic acid(iii) propanoic acid (iv) butanoic acid a(a)(i)(ii)(iii)(iv)(b)(ii)(iii)(iv)(i)(c)(i)(iv)(iii)(ii)(d)(iv)(i)(iii) (ii) 相关知识点: 试题来源...
The indicator turns red in an acidic solution. Which of the following is not an acidic solution? A. lemon juice B. vinegar C. soda water D. dilute hydrochloric acid 相关知识点: 试题来源: 解析 C。指示剂在酸性溶液中变红。下列哪个不是酸性溶液?苏打水不是酸性溶液。A 选项柠檬汁是酸性的...
Which factor of the following affects not only the fuels combustion but also the engine’s maintenance?() A.cetane number B.flash point C.viscosity D.setting point 参考答案:C 进入题库练习 查答案就用赞题库小程序 还有拍照搜题 语音搜题 快来试试吧 无需下载 立即使用 你可能喜欢 单项选择题...
Which one of the following salts, when dissolved in water, produces the solution with the highest pH? a) {eq}NaHSO_{4} {/eq} b) {eq}LiClO_{4} {/eq} c) {eq}NH_{4}NO_{3} {/eq} d) {eq}NaNO_{2} {/eq} Hydro...
Which of the following compounds is an organic base? a) CH3-C-CH2-CH3 b) CH3-CH2-OO-CH2-CH3 c) CH3-CH2-CH2-OH-O d) CH3-Ch2-CH2-C-OH e)CH3-CH2-CH2-NH2 Organic compounds: An organic compound is known...
解析 The OH is more acidic(pKa≈17)than the C α to the ketone(pKa≈20). Because the by−product of the reaction is H2O,there is no need to break the O−H bond to get to product,but the C−H bond α to the ketone must be broken....
5. Which of the following is an appropriate title for this passage? A. Breastfeeding May Enhance Babies’ Chances of Survival B. Breastfeeding May Lower Moms’ Diabetes Risk C. Breastfeeding May Become Very Fashionable in Near Future D. Breastfeeding May Help Women Lose Weight. Passage 2 Que...