Chlorine atom gains one electron and attain the electronic configuration like stable…….
a) helium
b) neon
c) argon
d) xenon
Which of the following model/s is/are used to show ionic bond formation between cation and anion?
a) Bohr’s model
b) electron dot and cross structure
c) line graph
d) all of these
Explanation:A dot and cross diagram can model the bonding in a simple molecule : the outer shell of each atom is drawn as a circle. circles overlap where there is a covalent bond. electrons from one atom are drawn as dots, and electrons from another atom as crosses.
Which one of
the following represents the ordinary table or common salt?
a) Na2CO3
b) NaHCO3
c) NaF
d) NaCl
Which one of the following represents sodium fluoride which is present in tooth paste?
a) Na2CO3
b) NaHCO3
c) NaF
d) NaCl
Which one of the following is used as baking soda and antacid?
a) Na2CO3
b) NaHCO3
c) NaBr
d) NaCl
Which of the following is an ingredient in cleaning agent?
a) Na2CO3
b) KHCO3
c) NaBr
d) NaCl
