Which one of the following species is paramagnetic? We know that a molecule becomes paramagnetic due to the presence of unpaired electrons. He2 4. It is paired with a species that has an opposite magnetic pole. (A) NO^- (B) O2^2- (C) CN^- (D) CO, Given the species : N2, CO, CN^- and NO^+ . O 2 : K K (σ … Diamagnetism occurs when orbital electron motion forms tiny current loops, which produce magnetic fields. CO+ = 6 + 8 - 1 = 13 B.O = 2.5 and is paramagnetic in nature due to odd no of electrons (13 electron) B2 = 10 electron. … To identify the magnetic nature we need to check the molecular orbital configuration, lf all orbitals are fully occupied, species is diamagnetic while when one or. Answered By A) Cu B) Y^3+ C) Ne D) Zn^2+ E) Ra. O 2 and O 2 − are paramagnetic while O 2 2 − is diamagnetic. Similarly if the species contain unpaired electron it is said to be paramagnetic. Paramagnetic Substances: Paramagnetic substances are … If the the bond order is fractional, species are paramagnetic. as07082000 as07082000 Answer: B. Materials that display paramagnetism are called paramagnetic. C2 2+ has the same number of electrons as B2, and since B2 is paramagnetic, so is C2 2+. To know the magnetic character of molecules we can use MO diagram. Explanation: The species in which the N atom is in a state of sp hybridization is: NO. The key difference between paramagnetic and diamagnetic materials is that the paramagnetic materials get attracted to external magnetic fields whereas the diamagnetic materials repel from the magnetic fields.. Materials tend to show weak magnetic properties in the presence of an external magnetic field.Some materials get attracted to the external magnetic field, whereas some … If unpaired electrons are present in an ion/molecule, then it is paramagnetic. Get answers by asking now. Be2^2- 2. It is an exception. Paramagnetic species have unpaired electrons. Why? The LibreTexts libraries are Powered by MindTouch ® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. 1 B. Correct option (a) O-2. Textbook solution for Chemistry & Chemical Reactivity 9th Edition John C. Kotz Chapter 9.3 Problem 3RC. the valence electrons for each species in its ground state. The other two are diamagnetic. N2 An excited state of the N2 molecule has the electron configuration (σ 1s2)(σ*1s2)(σ2s2)(σ*2s2)(π2p4)(σ2p1)(π*2p1)Complete the MO diagram for this exci... See all problems in Homonuclear Diatomic Molecules. Hence, it is paramagnetic in nature. If one reaction molecule is involved in the rate-determining step, the reaction is a first-order reaction. If all electrons are paired, then the ion/molecule is diamagnetic The MO electronic configurations are given. However, true paramagnets display magnetic susceptibility according to the Curie or Curie-Weiss laws and exhibit paramagnetism over a wide temperature range. A paramagnetic electron is an unpaired electron. True or false ? Paramagnetic molecules are attracted toward a magnetic field. 1 1. It is a permanent magnet. An external magnetic field causes the electrons' spins to align parallel to the field, causing a net attraction. Molecular Oxygen is Paramagnetic. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. All materials are diamagnetic. A) only Cl2 ... Q. To identify the magnetic nature we need to check the molecular orbital configuration, all orbitals are fully occupied, species is diamagnetic while when one or, Which of the following species is paramagnetic ? Zirp. (a) NO (b) CO (c) O2 (d) B2. You can easily predict the magnetic nature of any molecule/atom by its electronic configuration. Marks 3 F 2 B 2 Bond order ½ (8 – 6) = 1 ½ (4 – 2) = 1 Paramagnetic or diamagnetic diamagnetic paramagnetic σ σ∗ σ … Atoms or molecules with an even number of electrons are diamagnetic. is odd electron system. Other species do not have unpaired electron so they are diamagnetic in nature. Classification of elements and periodicity in properties, General principles and process of Isolation of metals, S - block elements - alkali and alkaline earth metals, Purification and characteristics of organic compounds, Some basic principles of organic chemistry, Principles related to practical chemistry. Paramagnetism is due to the presence of unpaired electrons in the material, so most atoms with incompletely filled atomic orbitals are paramagnetic, although exceptions such as copper exist. Can you explain this answer? Paramagnetic molecules get attracted towards external magnetic field and diamagnetic repel the external magnetic field. We now turn to a molecular orbital description of the bonding in \(\ce{O2}\). Explanation: CN-, CO and NO + are isoelectronic with 14 electrons each and there is no unpaired electrons in the MO configuration of these species. Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Will have bond order in which set of molecules all the species are paramagnetic a) B2 O2 N2 b)B2 o2 NO c) B2 F2 O2 d) B2 O2 Li2 1 See answer mpragya733 is waiting for your help. B2 has ten electrons but paramagnetic. Which of these species will be paramagnetic? C262- 3. Atoms or molecules with an odd number of electrons are paramagnetic. N O, N O 2 both have one unpaired electron so they both are paramagnetic in nature i.e. 1. Hence, KO2 behaves as paramagnetic molecule. Which of the following species is not paramagnetic ? Join Yahoo Answers and get 100 points today. Which of the following statements are true for these (A) All species are paramagnetic, Assertion (A): B2 , O2 , NO are paramagnetic in nature.  Reason (R): They have unpaired electrons and are paramagnetic.Â. Which of these species will be paramagnetic? Lv 4. I'm looking for a piece of glassware from France? Why B2 is paramagnetic in nature while C2 is not? This further continues by the stability of atomic orbitals. Still have questions? In paramagnetic materials, the magnetic moments of the electrons don't completely cancel each other out. (But you're in luck, because I've already drawn it out before if you want to see.). It has one or more unpaired electrons. Due to their spin, unpaired electrons have a magnetic dipole moment and act like tiny magnets. odd number of electrons, that specieces is paramagnetic. When we draw MO diagram for dihydrogen anion ( H2-) we find one unpaired electron in antibonding sigma orbital. Answer Save. An atom is considered paramagnetic if even one orbital has a net spin. true or false. Nov 18,2020 - The common features among the species CN-, CO, NO+ and N2 area)isoelectronic, paramagnetic, bond order threeb)isoelectronic, diamagnetic, bond order threec)isoelectronic, paramagnetic, bond order twod)isoelectronic, diamagnetic, bond order twoCorrect answer is option 'B'. Paramagnetism cannot be deduced from the Lewis structure of a molecule alone. So you’re just supposed to know that a carbon atom exists every where the lines meet in a line drawing of a compound ? Lv 7. An atom could have ten diamagnetic electrons, but as long as it also has one paramagnetic electron, it is still considered a paramagnetic atom. 2 C. 3 D. 4 O-2 is paramagnetic due to the presence of one unpaired electron. Lets see why remaining are not paramagnetic. species like B2 are paramagnetic due to presence of two unpaired electrons in pi 2p bonding molecular orbitals according to molecular orbital theory. We have step-by-step solutions for your textbooks written by Bartleby experts! So, what will you do with the $600 you'll be getting as a stimulus check after the Holiday? Question: How Many Of The Following Species Are Paramagnetic? Hence, I am unable to grasp the formula correctly. | EduRev Class 11 Question is disucussed on EduRev Study Group by … Among the following, the paramagnetic compound is a. Na2O2 b. O3 c. N2O d. KO2Sol. Which is the light metal available with better Hardness ? ? A species is said to be diamagnetic when it has all the paired electrons. It so happens that the molecular orbital description of this molecule provided an explanation for a long-standing puzzle that could not be explained using other bonding models. What is a paramagnetic species? The instantaneous reaction rate is always equal and constant. If you mean O^2+: O(0) [He] 2s^2 2p^4 →- 2e⁻→ O^2+ [He] 2s^2 2p^2 (↑)(↑) Two unp e⁻ paramagnetic, If you mean [O-O]^+ [O2]^+ = 11 valence e⁻ = σs(2 e⁻) σs*(2e⁻) σp(2e⁻) πp(4e⁻) πp*(1e⁻) σp*(0), O^2- [He] 2s^2 2p^4 →+2e⁻→ O^2+ [He] 2s^2 2p^6 all e⁻ paired diamagnetic, [O2]^- = 13 valence e⁻ = σs(2 e⁻) σs*(2e⁻) σp(2e⁻) πp(4e⁻) πp*(3e⁻) σp*(0) One unp e⁻ paramagnetic, N^2+ [He] 2s^2 2p^3 →- 2e⁻→ N^2+ [He] 2s^2 2p^1 One unp e⁻ paramagnetic, [N2]^+ 9 valence e⁻ = σ1(2e⁻) σ2 (2e⁻) π1(2e⁻) σ3(1e⁻) π2*(0e⁻) σ4*(0 e⁻) One unp e⁻ paramagnetic, N^2- [He] 2s^2 2p^3 →+2e⁻→ N^2- [He] 2s^2 2p^5 One unp e⁻ paramagnetic, [N2]^- 11 valence e⁻ = σ1(2e⁻) σ2 (2e⁻) π1(2e⁻) σ3(2e⁻) π2*(1e⁻) σ4*(0 e⁻) One unp e⁻ paramagnetic. Given the species : N2, CO, CN^- and NO^+ . The other two are paramagnetic because they have an odd number of electrons so it doesn’t matter what kind of bonding they are involved in, the electrons cannot be all paired up. Which of the following species is not paramagnetic ? Erika. 30) Consider the species N2', N2, and N2. In the following which of the two are paramagnetic;N2,CO,B2,NO2 2 See answers aqibkincsem aqibkincsem "CO and B2 are paramagnetic in nature. Here is a trick to do this question without having to invoke too many MO diagrams, as there is almost no way you could have seen the MO diagram of #"NO"^(-)# without the impressive ability to draw one from scratch. Add your answer and earn points. The Quora Platform does not have a direct text formatting features. Here,Li2- is more stable due to the presence of anti bonding electrons. It is repulsed by a magnetic field. [N2]^- 11 valence e⁻ = σ1(2e⁻) σ2 (2e⁻) π1(2e⁻) σ3(2e⁻) π2*(1e⁻) σ4*(0 e⁻) One unp e⁻ paramagnetic As already pointed out the N species have to be paramagnetic … Use the MO energy diagram as provided on the right. Is it neutral Oxygen molecule (O2(subsript))? N2 molecules are diamagnetic. 1 Answer. How Diamagnetism Works . If the bond order is integer, species is diamagnetic ( except 10 electron, 16 electron species). As already pointed out the N species have to be paramagnetic because they are odd e⁻ systems. Some compounds and most chemical elements are paramagnetic under certain circumstances. Hence calculate the bond order for F 2 and B 2 and indicate whether these molecules are paramagnetic or diamagnetic. The neutral oxygen is paramagnetic according to MO theory because it ends up with two unpaired electrons in two degenerate pi antibonding molecular orbitals. Relevance. Answer to: Which of the following species is paramagnetic? N2+ O22- Ne2+ F2- A. A) N, and N2 B) N2, and N2 C) N2, and NZ D) only N2 E) None 7 31) Referring to question 30, what is the bond order in N2*? So, in KO2 the oxygen atoms bear -1/2 oxidation state and they also behave as a free radical species, having an unpaired electron. Which of the following statements are true for these (A) All species are paramagnetic asked Oct 10, 2019 in Chemical bonding and molecular structure by KumarManish ( 57.6k points) So these are diamagnetic. 4 years ago. If it has any unpaired electrons it will be paramagnetic and otherwise it Answer to: Which of the following diatomic species is paramagnetic with the lowest bond order? paramagnetic. In this way, is b2 − paramagnetic or diamagnetic? Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students. Electronic configuration of Scandium; Sc = 21 = 1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d¹ Sc³⁺ = 1s², 2s², 2p⁶, 3s², 3p⁶ Hence in Sc³⁺ there is no unpaired electron. I believe C2 2+ is the only paramagnetic species. O_2^- in KO2 has 17 electrons, species with odd electrons are always paramagn It has a pair of electrons which are magnetic.