Give one word or a phrase for — Process of formation of ions from molecules which are not in the ionic state.
Ionization
Draw an electron dot diagram to show the formation of each of the following compounds — (i) Methane (ii) Magnesium chloride [H = 1, C = 6, Mg = 12, Cl = 17]
(i) Electron dot diagram showing the formation of Methane is given below: (ii) Electron dot diagram showing the formation of Magnesium chloride is given below:
State the type of bonding in the following molecules: (i) Water (ii) Calcium Oxide
(i) Covalent bonding (ii) Electrovalent bonding
State which of the following is a common characteristic of a covalent compound. (a) High melting point (b) Consists of molecules (c) Always soluble in water (d) Conducts electricity when it is in the molten state.
(b) Consists of molecules Reason In covalent compound, valence shell electrons are mutually shared by atom of each element to achieve a stable electronic configuration. As there is no transfer…
Fill in the blanks: The compound that does not have a lone pair of electrons is …………… [water, ammonia, carbon tetrachloride].
The compound that does not have a lone pair of electrons is carbon tetrachloride.
Draw an electron dot diagram to show the formation of ammonium ion [N = 7, H = 1]
Electron dot diagram showing the formation of ammonium ion is given below:
Elements – W, X, Y & Z have electronic configurations: W = 2,8,1 X = 2,8,7 Y = 2,5 Z = 1 (i) What type of bond is formed between: (a) W and X (b) Y and Z (ii) What is the formula of the compound formed between : (a) X and Z (b) W and X
(i) Type of bond formed (a) W (2,8,1) and X (2,8,7) — Electrovalent bond is formed as W donates 1 electron and X takes up that electron and both attain a stable octet.…
Fill in the blanks from the choices given : Electrovalent compounds have ………….. [high/low] melting points.
Electrovalent compounds have high melting points.
An element L consists of molecules. (i) What type of bonding is present in the particles that make up L? (ii) When L is heated with iron metal, it forms a compound FeL. What chemical term would you use to describe the change undergone by L?
(i) Covalent bonding is present in L as the bond is formed between same atoms. (ii) On heating, Fe undergoes oxidation and loses two electron as follows : Fe - 2e– ⟶ Fe2+ Two electrons…
Explain the bonding in methane molecule using electron dot structure.
Formation of methane molecule — The valency of C is 4 and that of H is 1. Carbon needs four electrons to attain stable octet and hydrogen needs one electron to…