Which of the following pair has electron deficient compounds: MEDIUM. I know I can eliminate E because the total amount of valence electrons in HCl is 8. Odd-electron molecules A molecule with an odd number of electrons in the valence shell of an atom. According to the octet rule, the atoms of the prime-group elements seem to bind in such a manner that each atom exhibit eight electrons in its valence shell, providing it the similar electronic configuration as a noble gas. e (e) As HCN does not follow the octet rule and is mentioned in the above options, option(e) is not the correct answer. a) NF3 b) CF4 c) SF4 d) PH3 e) HCl I know I can eliminate A and B because nitrogen and carbon follow the octet rule. View Answer. This does not mean that the octet rule is useless—quite the contrary. Chemistry. View Answer. Octet rule which can explain the chemical bonding in different compounds. There are three violations to the octet rule. NCERT DC Pandey Sunil Batra HC Verma Pradeep Errorless. View Answer. They have at least one unpaired electron. MEDIUM. The octet rule is not universal although it is useful. The octet rule is not followed by: MEDIUM. Significance of Octet Rule. Carbonate can satisfy the octet rule if all of the electrons happen to be shared equally by the carbon and thus filling it's valance shell. This law is known as the Octet rule. Which one of the following does not follow octet rule? In the given question, in BrF3, fluorine follows octet rule, while bromine does not follow the octet rule. Exceptions to the Octet Rule. Physics. Answer and Explanation: Following the Octet Rule for Lewis Dot Structures leads to the most accurate depictions of stable molecular and atomic structures and because of this we always want to use the octet rule when drawing Lewis Dot Structures. View Answer. MEDIUM bits. Aside from hydrogen, there are also atoms who do not strictly follow the octet rule such as those with expanded octet, incomplete octet, and odd-electron molecules. C. CS 2. Three cases can be constructed that do not follow the octet rule, and as such, they are known as the exceptions to the octet rule. Which of the following does not follow the octet rule ? Which one of the following compounds does not follow the octet rule? A. NCl 3. Chapter 10 Chemical Bonding I: Basic Concepts represent the first violation to the octet rule. Molecules that do not follow the octet rule are usually more reactive than ones that do. . B. These electrons are less stable and do not obey the octet rule. Three cases can be constructed that do not follow the Octet Rule, and as such, they are known as the exceptions to the Octet Rule. Which of the following does not follow the octet rule ? View Answer. View Answer. D. SBr 4 Limitations of Octet Rule in Points. As with many rules, there are exceptions, or violations. Many elements do not follow the octet rule. Some of the exceptions about octet rule are given below: An electron or molecule which contains unpaired electrons in its outermost shell or valence shell is considered as free radical. NCERT P Bahadur IIT-JEE Previous Year Narendra Awasthi MS Chauhan. Books. I hope this helped. C 2 H 4. A) water, H2O B) NO C) carbon dioxide, CO2 D) carbon monoxide, CO E) phosphorous pentachloride, PCl5. . Free radicals do not follow the octet rule. The octet rule is not valid for which of the following molecules? Octet rules illustrate the different types of bonds, such as a covalent, electrovalent and coordinated bond. But this does not happen often since oxygen is much more electronegative and will hold those electrons closer to it most of the time meaning it does no always satisfy the octet rule. Biology. I am not … Which of the following molecules do not follow the octet rule? 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