The Bronsted-Lowry definition of a base is: produces OHin solution. a proton acceptor. produces Hin solution. a proton donor. none of the above QUESTION 19 What is the oxidation state of the underlined atom in the compound: H2SO4 ? +1+22+6+4 QUESTION 20 Which of the following acids is diprotic? HClO4 HNO3 H2SO4 HI none of the above QUESTION 21 Which of the following are typically TRUE of a reducing agent? 1. It causes reduction. 2. It gains electron(s). 3. It is the oxidized substance. 1 and 2 only 2 and 3 only 1 and 3 only All of 1,2 , and 3 Neither 1,2 or 3