An acid is a substance that donates hydrogen ions. Because of this, when an acid is dissolved in water, the balance between hydrogen ions and hydroxide ions is shifted. Now there are more hydrogen ions than hydroxide ions in the solution. This kind of solution is acidic.
D. similar number of nuetrons
C.silver
nacl is a compound of na and cl
h2o is a compound of 2h and o
electron is a particle in an atom
Statement D is the correct option as the solution will have pH of 3. It has an H3O+ ion concentration of 1 ×
mol/L and is acidic.
Explanation:
It is given in question that solution must have pH of 3. The value if being less than 7 shows that solution is acidic. The pH value of 3 indicates that given solution is highly acidic and has strong acid. Strong acid gets fully dissociated into 
ions.
pH of the solution is calculated as:
pH = -log10[
]
the concentration or molarity of the hydronium ion is given as moles/litre
concentration of hydronium ion in the solution is 1 X
moles/litre
putting the values in the equation:
pH = - log10( 1 X
)
pH = 3 (acidic)
Thus it can be concluded that D option is the right answer.
NH4NO3 b) C8H8O4 c) O3 d) C3H5(NO3)3