which of the following is not a compound answer

Give reason for your answer: Post Answer. Covalent bonds form between two nonmetal atoms. ANSWER: Correct Oxygen is a molecule because it consists of the element oxygen only. Among the given options Brass is not a compound. Five isomeric p-substituted aromatic compounds (A) to (E) with molecular formula C 8 H 8 O 2 are given for identification. Which of the following compounds will not exist as resonance hybrid. : It shows resonance due to the presence of lone pair of electrons on … But as it says which one, it will want you to say B. Explain why. Since it is an alloy, it is a mixture. It has a unique composition that is always the same. Give reason for your answer: (i) CH_3 OH # NCERT. Answers (1) I infoexpert24 : It does not show resonance because there are no electrons. Favorite Answer Air is a solution not a compound because in the atmosphere nearest earth it is oxygen,nitrogen,co2, and traces of many other gases, but nearer the edge of the atmosphere it is divided into helium and hydrogen. Part A Which of the following is NOT a compound? Chapter 2 Reading Quiz Question 5 Part A Except for elements 1 and 2, … •The compound has properties different from the elements it contains. Median response time is 34 minutes and may be longer for new subjects. Compounds may be classified as either molecular or ionic depending on the nature of chemical bonds present among the elements that form the compounds. The smallest part of a compound is called a molecule. Ammonia is a compound NH4, Water is a compound H2O, Salt in various forms are compounds NaCl (table salt). The other choices are molecules of compounds because they contain two or more different kinds of elements. C is carbon. Based on the following observation, give the structures of the compounds. If you can have more than one answer then A-CO2 and B-NaCL as technically an organic compound contains hydrogen and carbon. In this case Magnesium is a metal and Chlorine is … The others are compounds because they represent molecules composed of more than one element. _______ keep fluid from leaking between cells. •It can only be separated into its elements using chemical reactions. An organic compound is a compound containing carbon. *Response times vary by subject and question complexity. a. It is a mixture of copper and zinc. (B) also gives a positive test with neutral F e C l 3 solution. A. has a different properties from the elements that formed it B. is a pure substance C. different samples have different properties d. can be represented by a formula. 1 st Semester Exam Study Guide ANSWERS 1.) Both (A) and (B) form a silver mirror with Tollens reagent. 2. an unchanging measurement of the amount of matter an object contains is its A. mass B. density c. volume, d. length 3.characteristic properties … a. H 2 O b. O 2 O 2 IS A MOLECULE AND A MOLECULE IS MADE UP OF TWO OR MORE OF THE SAME ELEMENTS THAT ARE CHEMICALLY BONDED. i. The answer is Mg(Cl)2. (not using physical methods) •During the formation of a compound from its elements, a certain amount of energy in the form of heat, light, electricity is either absorbed or evolved IT IS NOT A COMPOUND BECAUSE IT IS NOT MADE UP OF 2 … Which of the following is NOT a compound? Cl is chlorine. Source(s): 4th-grade science O2 is not a compound; it is a molecular element. ii. Compound is a substance that consists of two or more elements.