Chemical properties determine the behavior of substances. Which of the following is a chemical property that affects the reactivity of a substance? A. Color B. Melting point C. Solubility D. Electronegativity 相关知识点: 试题来源: 解析 D。电负性影响物质的反应性,是化学性质。颜色、熔点和溶解性...
Non-combustible substance View Solution Most of the substances show which of the following types of magnetism ? View Solution View Solution View Solution View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths ...
Which of the following substance can NOT be found directly from an old ventilation system? A. Chemical disinfectants. B. Bacteria. C. Fungi. D. Pentachlorophenol. 相关知识点: 试题来源: 解析 D 正确答案:D 解析:细节题。倒数第二段第二句指出,在旧式空调系统中,用于循环的水储存在特制的贮液器中...
Which of the following substance should exhibit hydrogen bonding in the liquid state? Explain . a.H2Sb.CH3OHc.CH3NH2d.SiH4e.CBrF3 Hydrogen Bonding:Hydrogen bonding is an intermolecular force forming a special type of dipole-dipole attr...
Identify the conjugate acid-base pairs in the following reaction. Indicate what each substance is in each pair. H2CO3 + PO43- arrow HCO3- + HPO42- Which of the following is not a conjugate acid-base pair? Select one: a. H 2...
During which of the following substance does sound travels the fastest? A.air B.water C.steel D.glass相关知识点: 试题来源: 解析 C 题目大意:声音在以下哪种物质中传播最快?分析如下:声音的传播速度从大到小排 列是:固体>液体>气体。所以在钢铁中传播速度最快。故选 C。
Which one of the following substance is responsible for formation A2,4-D BNAA CBAP DPEGSubmit Which of the following toxic substance is responsible for the malarial fever. AHaemocyanin BHaemozoin CHaemoglobin DHaemoridenSubmit Which of the following toxic substance is responsible for the chill an...
Which of the following is not correct about the substance metabolism in different tissues and organs ?liver is the hinge of the substance metabolism;glucose decomposition in heart is mainly aerobic oxidation ;the energy of brain usually come from glucose ;the energy of red cell usually come from...
Dopamine produced in flow is associated with which of the following? a) Psychological reward. b) Recovery. c) Anxiety. d) Both a and b. Dopamine: Dopamine refers to a hormone that is active within the nervous system. This substance is inv...
Which of the following substances are polar covalent? Check all that apply. a).Cl2b).BrF3c).NCl3d).CsIe).COf).NaClg).POCl3h).MgO Covalent Bond: Covalent bonds are formed by the sharing of electrons between two atoms. There are ...