GENERAL KNOWLEDGE

Detailed explanation-1: -Molecules have molecular bonds. Nitrogen gas (N2) is a molecule because the bond between the nitrogen atoms is a molecular bond. Water (H2O) is a molecular compound because it is a substance made from more than one kind of element that is held together with molecular bonds.

Detailed explanation-2: -Molecules that have two atoms are called diatomic. Hydrogen (H2 ), nitrogen (N2 ), oxygen (O2 ), fluorine (F2 ), chlorine (Cl2 ), bromine (Br2 ), and iodine (I2 ) are diatomic.

Detailed explanation-3: -Molecular nitrogen (N2) is a very common chemical compound in which two nitrogen atoms are tightly bound together. Molecular nitrogen is a colorless, odorless, tasteless, and inert gas at normal temperatures and pressures. Four representations chemists use for nitrogen molecules.

Detailed explanation-4: -Answer and Explanation: N2 and O2 are pure gases, since they are molecules comprised of two atoms of the same elemental identity. They are classified into pure substances. N2O N 2 O is an oxide formed by bonding the atoms of different identities (nitrogen and oxygen) which is a compound.

Detailed explanation-5: -If it were made up of more than one kind of atom, it would be a compound. Water is a compound because it is made up of water molecules. There is no such thing as water atoms. Water molecules are made of hydrogen and oxygen atoms, in the definite proportion of two hydrogens for one oxygen.