Description : Which of the following statements are correct concerning delocalized electrons? (a) Electrons do not belong to a single atom. (b) Electrons are not confined to a bond between two atoms (c) Electrons are shared by three or more atoms. (d) (a), (b) and (c)
Last Answer : (d) (a), (b) and (c)
Description : (3) the number of electrons orbiting around the nucleus Explanation: The chemical behavior of an atom is determined by the number of electrons on its outer shell. As for the chemical bonding properties of ... , and in what ratio atoms will bond to form the 20,000,000 different substances on Earth.
Last Answer : Methyl phenyl ether can be obtained by reacting - (1) phenolate ions and methyl iodide (2) methoxide ions and bromobenzene (3) methanol and phenol (4) bromobenzene and methyl bromide
Description : Mark the correct option a) When an official is transferred permanently to the jurisdiction of another office, the officer in charge of the office in which his bond is kept will forward the bond to ... or temporary officials will be entered in the prescribed register Form Sec. 19. d) All the above
Last Answer : d) All the above
Description : What kind of bond is formed when the attraction between the hydrogen atom in one water molecule and the oxygen molecule in another?
Last Answer : Feel Free to Answer
Description : The bond formed by transferring elec- trons from an atom to another?
Last Answer : Ionic Bond
Description : What is the flow of electrons from one atom to another called?
Last Answer : Electric current
Description : For _______ bonding, one or more electrons are transferred between atoms. a. hydrogen b. ionic c. peptide d. covalent
Last Answer : b. ionic
Description : When potassium forms a compound with iodine one electron is transferred from the atom to the atom?
Last Answer : Potassium lose an electron (iodine gain this electron) to form potassium iodide, KI.
Description : Which property of atom determines the type of bond they form & their properties.
Last Answer : Ans : Reason : The difference in electronegativities of two combining atoms decides the nature of bond that is formed between them & affects the properties of molecules.
Description : Name the type of bond in which there is an unequal attraction for the shared electrons and a resultant unbalanced distribution of charge:
Last Answer : ANSWER: POLAR COVALENT BOND
Description : A(n) _____ bond forms when two atoms share one or more pairs of electrons?
Last Answer : covelent
Description : What is the atom in a molecule of water that is more visited by the shared electrons?
Last Answer : Oxygen has a low negative charge.
Description : When an atom loses one or more electrons what does the atom become?
Last Answer : A positive ion with a radius smaller than the radius of thisatom.
Description : Why does sulfur dioxide have 10 electrons on central atom when that is more than 8. I don't understand how it can violate the rule?
Last Answer : The octet rule is a simplification, not a hard and fast rule. We use it to help students at the start of their studies of bonding. When sulfur forms more bonds, more energy is released. resulting in a more stable situation.
Description : Acetamide is a much weaker base than ammonia. This is because (a) the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom less available for protonation. (b) ) ... NH2 group. (d) an H atom from the nitrogen is less easily lost from CH3CONH2 than from NH3.
Last Answer : the electron withdrawing effect of the C=O group makes the lone pair of electrons on nitrogen atom less available for protonation
Description : If an atom loses one or more electrons, it becomes _____.
Last Answer : It becomes positively charged atom.
Description : Where an application is made to a public authority requesting for an information which is held by another public authority, or the subject matter of which is more closely connected with the functions of another public ... receipt of the application. a) 30 days b) 10 days c) 3 days d) 5 days
Last Answer : d) 5 days
Description : Mark the correct option a) Maximum 12 deposit can be made in a financial year and more than one deposit can be made in one month b) Only one account can be opened in Post office or SBI or any ... from one PO to another and PO to State bank or nationalized bank vice versa. d) All the above
Description : What kind of bond does a carbon atom make?
Last Answer : Carbon is a basic element.
Description : Which of the following species is non polar with presence of polar bond and lone pair of electron on central atom.
Last Answer : Which of the following species is non polar with presence of polar bond and lone pair of electron on central atom. A. ... 4)` C. `XeF_(4)` D. `CF_(4)`
Description : What happens to an atom of fluorine (F) when it forms an ionic bond in which it has the same electron configuration as the noble gas neon?
Last Answer : It accepts one electron.
Description : What The double bond between carbon atom and two oxygen atoms has two characteristics what are they?
Last Answer : Four valence electrons are shared.Valence electrons are shared between oxygen atoms.
Description : What is the maximun number of atoms that a carbon atom can bond with in an organic compoud?
Description : If the bond angles at a carbon atom are 120 degrees how many groups are distributed around the carbon atom?
Description : The high reactivity of fluorine is due to (a) Its high electronegativity (b) Small size of flourine atom (c) Availability of d-orbitals (d) Strong F-F bond
Last Answer : Ans:(a)
Description : The energy released when an extra electron is added to a neutral gaseous atom is called (a) Bond energy (b) Electron affinity (c) Ionization potential (d) Electronegativity
Last Answer : Ans:(b)
Description : The high reactivity of fluorine is due to (1) small size of fluorine atom (2) its high electro negativity (3) availability of d-orbitals (4) strong F - F bond
Last Answer : (2) its high electro negativity Explanation: The high reactivity of fluorine is due to its high electro negativity.
Description : The ability of an atom to accept the elec- trons during molecular bond formulation is known as?
Last Answer : Electro negativity
Description : The unsaturated hydrocarbons having double bond between carbon atom are
Last Answer : alkene.
Description : Triethylamine [(CH3CH2)3N] is a molecule in which the nitrogen atom is __________ hybridized and the CNC bond angle is __________. (a) sp2; >109.5° (b) sp2; 109.5° (d) sp3;
Last Answer : sp3;
Description : The compound methylamine, H3C–NH2, contains a C–N bond. In this bond, which of the following best describes the charge on the nitrogen atom? (a) slightly positive (b) uncharged (c) slightly negative (d) –1
Last Answer : slightly negative
Description : Catenation is a property of the carbon atom which describes its ability to (a) bond with other carbon atoms (b) form double and triple bonds (c) exist in plant and animal form (d) form bonds in its ground state
Last Answer : bond with other carbon atoms
Description : Which of the following species contains three bond pairs and one lone pair around the central atom? (1) PCl3 (2) H2O (3) BF3 (4) NH2
Last Answer : PCl3
Description : Is A nonpolar bond is formed when two atoms share electrons unequally?
Last Answer : No. A polar bond is formed when electrons are sharedunevenly.A nonpolar bond indicates even sharing of electrons.
Description : (A) Heterolytic fission involves the breaking of a covalent bond in such a way that both the electrons of the shared pair are carried away by one of t
Last Answer : (A) Heterolytic fission involves the breaking of a covalent bond in such a way that both the electrons of ... IF (A) is incorrect but (R) is correct.
Description : The temporary effect in which there is a complete transfer of shared pair of `pi-` electrons to one of the atoms joined by a multiple bond on the dema
Last Answer : The temporary effect in which there is a complete transfer of shared pair of `pi-` ... effect C. hyperconjugation D. negative resonance effect
Description : In `OF_2`, the number of bond pairs and lone pairs of electrons are respectively,
Last Answer : In `OF_2`, the number of bond pairs and lone pairs of electrons are respectively, A. 2,6 B. 2,8 C. 2,10 D. 2,9
Description : What identification bond characterized by the sharing of electrons between atoms?
Last Answer : This is the covalent bond.
Description : What can we say about the electrons in a metallic bond?
Last Answer : The electrons in a metal are delocalised.
Description : What is a chemical bond that occurs when atoms share electrons?
Last Answer : This is a covalent bond.
Description : In a non-polar covalent bond electrons are?
Last Answer : In a non-polar covalent bond electrons are evenly distributed.
Description : How many total electrons are shared in a triple covalent bond?
Last Answer : 4 :)
Description : A single covalent bond (a) Is formed by the transfer of two electrons (b) Exists between hydrogen and chlorine in an aqueous solution, of hydrochloric acid (c) Is longer than a double bond (d) Does not require energy to disrupt it unlike an ionic bond
Last Answer : Ans:(c)
Description : Which of the following statements about benzene is correct? (a) All of the carbon atoms are sp3 hybridized. (b) It has no delocalized electrons. (c) The carbon-carbon bond length is longer than that of ethane. (d) It is a planar molecule.
Last Answer : It is a planar molecule.
Description : Explain why the water molecule has a bent shape and a bond angle less than 109.5° The electron repulsion between the two lone pairs of electrons on the oxygen of water causes the O–H bonds to squeeze close together
Last Answer : The electron repulsion between the two lone pairs of electrons on the oxygen of water causes the O–H bonds to squeeze close together
Description : How many electrons are involved in a carbon-carbon triple bond? (a) 1 (b) 2 (c) 3 (d) 6
Last Answer : 6
Description : How many electrons are involved in a carbon-carbon double bond? (a) 1 (b) 2 (c) 3 (d) 4
Last Answer : 4
Description : Which statement is correct? (a) Energy is released when a bond breaks. (b) A sigma bond results from attraction of protons and electrons. (c) Energy is released when a bond forms. (d) A carbanion is positively charged
Last Answer : Energy is released when a bond forms
Description : When radiation breaks an electron pair bond in a molecule and each fragment of the molecule gets one of the bond electrons, the molecular fragments that are formed are called: w) ions x) free radicals y) stable molecules z) gases
Last Answer : ANSWER: X -- FREE RADICALS