Understanding the model of the atom helps predict how elements will react with each other.
For example, the ball-and-stick model is a molecular model of a chemical substance which is to display both the three-dimensional position of the atoms and the bonds between them.
The atoms are represented by spheres, connected by rods which represent the bonds.
Every ball represent one atom in one molecule and they have different colors for different atoms (for example, carbon is black, hydrogen is white, nitrogen is blue).
There also other models: skeletal models, polyhedral models, composite models, computer-based models.
b. H2SO4.
c. H3PO4.
d. HCl.
Answer: Option (d) is the correct answer.
Explanation:
An acid which gives only one hydrogen ion or ions upon dissociation in an aqueous solution is known as a monoprotic acid.
Whereas when an acid gives two hydrogen or ions upon dissociation in an aqueous solution is known as a diprotoc acid.
And when an acid gives three hydrogen or ions upon dissociation in an aqueous solution is known as a triprotoc acid.
Therefore dissociation of the given acids in an aqueous solution will be as follows.
Hence, we can conclude that out of the given options, HCl is the monoprotic acid.
Monoprotic acid are acids having only one hydrogen atoms after dissociation into ions from its compound. The monoprotic acid from among the following is HCl. The answer is letter D. HCl → H+ + Cl-. Note that there is only one H+ ion upon dissociation.
(1) decomposition (3) single replacement
(2) double replacement (4) synthesis
The Answer Is True :) Took The Test:)