Co-Ordinate Or Dative Covalent Bond MDCAT Quiz; Type of covalent bond where the shared pair of electrons comes from only one atom. The dative bond is an important concept in the formation of certain complicated molecules and also in explaining their reactivity. The concept of dative covalent bonds is very vital in the MDCAT Quiz for the answering of questions, specifically on molecular geometry, coordination compounds, and bonding in transition metals.
H2: Formation of Dative Covalent Bonds
A coordinate or dative covalent bond occurs when a single atom provides both electrons for a bond. Usually, this type of bond is formed if one atom has a lone pair of electrons available and another atom has an empty orbital to accept those electrons. The atom that donates the lone pair is referred to as the donor, while the atom that accepts the electrons is known as the acceptor. One typical example of a dative bond is shown by the ammonium ion formation, NH₄⁺. In this, the nitrogen of ammonia, NH₃, donates a lone pair to a proton, H⁺, to form the bond.
H3: Quiz on Dative Covalent Bond
The MDCAT quiz on dative covalent bonds will test students’ knowledge in the formation of these bonds, their properties, and how they differ from regular covalent bonds. Students will be asked to identify molecules or ions that involve dative covalent bonds, such as ammonia and the hydronium ion (H₃O⁺), and explain the role of lone pairs in bond formation. The quiz will also cover the importance of dative bonds in coordination compounds and their role in the stability of certain molecules. Practicing these quiz questions will help students consolidate their understanding of dative covalent bonds and prepare them for related questions in the MDCAT exam.
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H3: Free Flashcard for Dative Covalent Bond
To help solidify their understanding of dative covalent bonds, MDCAT students can use the Free Flashcard for this topic. The flashcards provide quick summaries of how dative bonds form, their characteristics, and key examples such as ammonium (NH₄⁺) and hydronium (H₃O⁺). Regularly reviewing these flashcards will help students recall important details about dative bonding and prepare them for related questions on the MDCAT exam. This tool is perfect for reinforcing the concept of dative bonds and ensuring a comprehensive understanding before the test.
A dative covalent bond is formed when _________.
one atom donates both electrons
In a dative covalent bond, both electrons in the bond come from ________.
the donor atom
Which of the following bonds is an example of a coordinate covalent bond?
NH₃ → H⁺
The bond between a Lewis acid and a Lewis base is an example of a ________ bond.
coordinate covalent
In a dative covalent bond, the electrons are donated by the ________.
donor atom
Dative covalent bonds are often formed between a ________ atom and a lone pair of electrons.
metal
Which of the following pairs of atoms would most likely form a dative covalent bond?
NH₃ and H⁺
A dative covalent bond is denoted by an arrow from _________.
the donor atom to the acceptor atom
The compound formed when ammonia (NH₃) reacts with boron trifluoride (BF₃) involves a ________ bond.
coordinate covalent
The lone pair of electrons from an atom in a coordinate covalent bond is donated by a ________ atom.
donor
In the compound H₄N₂²⁺, the nitrogen atoms are held together by ________ bonds.
coordinate covalent
A typical example of a Lewis base that can form a coordinate bond is ________.
ammonia
Dative covalent bonds are commonly formed in compounds of ________.
transition metals
In a coordinate covalent bond, the acceptor atom must have an ________ to accept electrons.
empty orbital
The donor atom in a coordinate covalent bond must have a ________.
lone pair of electrons
A molecule in which a coordinate covalent bond forms is generally ________.
more stable
The formation of a dative covalent bond requires a ________.
donor atom with lone electrons
In the molecule BF₃-NH₃, the nitrogen atom forms a ________ bond with boron.
coordinate covalent
The arrow in the representation of a dative covalent bond points from ________.
the lone pair donor to the acceptor
In a dative covalent bond, the donor atom must have a ________ orbital to form a bond.
vacant
The interaction between ammonia (NH₃) and a proton (H⁺) leads to a ________ bond.
coordinate covalent
The species formed when a Lewis acid accepts a lone pair of electrons is called a ________.
Lewis adduct
The dative covalent bond in the ammonium ion (NH₄⁺) is formed between ________.
nitrogen and hydrogen
Which of the following bonds is an example of a coordinate covalent bond in the reaction between NH₃ and H⁺?
NH₃ → H⁺
A coordinate covalent bond is a special case of ________ bond.
covalent
The acceptor atom in a coordinate covalent bond must be able to accept a ________.
lone electron pair
Which molecule involves the formation of a dative covalent bond when it reacts with a hydrogen ion?
NH₃
A dative covalent bond is often formed when an atom with a ________ forms a bond with an electron pair.
vacant orbital
In a coordinate covalent bond, the electrons come from the ________ atom.
donor
A coordinate bond forms between ammonia (NH₃) and a metal ion due to the presence of ________ in ammonia.
lone pair of electrons
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