Which compound contains both ionic and covalent bonds?

(3) NaNO₃
Step-by-step explanation:
Sodium nitrate has ionic bonds, because it consists of Na⁺ and NO₃⁻ ions.
However, the nitrate ions have covalent bonds between the O atoms and the central N atoms.
(1) and (2) are wrong. Both N₂O₅ and HCl consist of nonmetals, so they are covalent compounds.
(4) is wrong. NaCl has only ionic bonds between the Na⁺ and Cl⁻ ions

NaNO₃
this is your answer hope this helps!

3) potassium nitrate Explanation: An ionic bond is formed when an element completely transfers its valence electron to another element. The element which donates the electron is known as electropositive element and forms a positively charged ion called as cation. The element which accepts the electrons is known as electronegative element and forms a negatively charged ion called as anion. A covalent bond is formed when an element shares its valence electron with another element. This bond is formed between two non metals. 1.  potassium chloride : is made up of ionic bond between metal and non metal. 2.  potassium hydride : is made up of ionic bond between metal and non metal. 3) potassium nitrate : made up of ionic bond and is made up of covalent bond between two non metals nitrogen and oxygen. 4) potassium oxide: is made up of ionic bond between metal and non metal. Thus potassium nitrate contains both ionic and covalent bonds.

The correct answer is Explanation: Ionic compounds are defined as the compounds which are formed by the complete transfer of electrons from one atom to another atom. In these compounds, oppositely charged ions are attracted towards each other to form a compound. Covalent compounds are defined as the compounds which are formed by the sharing of electrons between the atoms forming a compound. In these compounds, no ions are formed. Monoatomic ions are the ions which have only one atom having a charge on it. Polyatomic ions are defined as the ions which have two or more than two atoms and the atoms form covalent bond. Potassium ion will form ionic bond with both monoatomic and polyatomic ions, but in polyatomic ions, the atoms form covalent bonds. Compound of potassium in which both covalent and ionic bonds are present is where ionic bond is present between potassium and chromate ions. Covalent bond is present between chromium and oxygen atoms. Compound of potassium having only ionic bond is KCl, where ionic bond is present between potassium and chlorine atoms. Hence, the correct answer is

Answer 6

The correct answer is option (A). Explanation: Covalent bonds are those bonds in which sharing of an electrons is present in between the two atoms. Generally this type of bonding is found when electro-negativity difference between is very less or zero. Ionic bonds are those bonds in which complete transfer of an electrons from one atom to another atom is present.Generally this type of bonding is found when electro-negativity difference between two atoms is very large. Compound contains both ionic and covalent bonds. Bond between carbon and oxygen atoms in carbonate ion is a covalent bond. Being a ploy-atomic ion it carries 2- charge.Calcium ion being 2+ charge will form ionic bond with carbonate ion.

Answer 7

The correct answer is option (A). Explanation: Covalent bonds are those bonds in which sharing of an electrons is present in between the two atoms. Generally this type of bonding is found when electro-negativity difference between is very less or zero. Ionic bonds are those bonds in which complete transfer of an electrons from one atom to another atom is present.Generally this type of bonding is found when electro-negativity difference between two atoms is very large. Compound contains both ionic and covalent bonds. Bond between carbon and oxygen atoms in carbonate ion is a covalent bond. Being a ploy-atomic ion it carries 2- charge.Calcium ion being 2+ charge will form ionic bond with carbonate ion.

The correct answer is Option d. Explanation: Ionic bond is formed when there is complete transfer of electrons from one atom to another. The atom which looses electrons is known as electropositive atom and the atom which gains electron is known as electronegative atom. Ionic compound, when dissolved in water will dissociate into its respective ions. Covalent bond is defined when there is sharing of electrons between the two atoms forming a compound. It does not dissociate into its respective ions, when dissolved in water. From the given options, the compound having both ionic and covalent bonds is NaOH. Here, covalent bond is present between O and H forming ion. When NaOH is dissolved in water, the equation follows: As, it gets dissociated into its ions, therefore ionic bond is also present. Hence, the correct answer is Option d.

Answer : The correct option is, (D) NaCN Explanation : Ionic compound : Ionic compound are the compounds in which atoms are bonded through ionic bond. Ionic bonds are formed by the complete transfer of electrons. The atom which looses the electron is considered as electropositive atom and the atom which gains the electron is known as electronegative atom. These bonds are formed between one metal and one non-metal. Covalent compound : Covalent compound are the compounds in which atoms are covalently bonded. Covalent bonds are formed by the equal sharing of electrons. These bonds are commonly formed between two non-metals. As per given options, and are the ionic compounds in which ‘K’ and ‘Ca’ are the metals and ‘I’ and ‘Cl’ are the non-metals that are bonded through the ionic bond. The option is a covalent compound in which the carbon, hydrogen and bromine atoms are non-metal that are bonded through the covalent bond. While the option, is the compound that contains both ionic and covalent bonds. In NaCN compound, ion and ion combines to form an ionic bond and in ion, carbon and nitrogen combine to form a covalent bond. Hence, the correct option is, (D) NaCN

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d. AlCl3 Explanation: In AlCl₃ each Al³⁺ cation is surrounded by three Cl⁻ anion. Al³⁺ has a small ionic radius giving it a high charge density whereas Cl⁻ has a large ionic radius, low charge, and easily polarizable. Al³⁺ pulls one electron from each of the three Cl⁻ ion thus giving the Al-Cl bond a covalent character.

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