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Tenth Grade (Grade 10) Acids and Bases Questions

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Grade 10 Acids and Bases
When something has a pH value of 7, it is considered to be
  1. acidic.
  2. basic.
  3. neutral.
  4. ionic.
Grade 10 Acids and Bases
Which two reactants would form the salt Na3PO4?
  1. H2OandNaOH
  2. H3PO3andNaOH
  3. H2PO4andKOH
  4. H3PO4andNaOH
Grade 10 Acids and Bases
Three physical properties of a solution that can differ from those of its solute and solvent are                                                .
  1. hydronium, hydroxide, and solution
  2. conductivity, freezing point, and boiling point
  3. atomic mass, atomic number, and symbol
  4. conductivity, evaporation, and freezing point
Grade 10 Acids and Bases
Which compound is an Arrhenius base?
  1. SO2
  2. HNO3
  3. LiOH
  4. H2O
Grade 10 Acids and Bases
Which of the following refers to a substance that accepts a proton?
  1. A Bronsted-Lowry acid
  2. Water
  3. A Bronsted-Lowry base
  4. An Arrhenius base
Grade 10 Acids and Bases
What is the formula of nitric acid?
  1. HNO2
  2. NO2
  3. H2(NO2)
  4. HNO3
Grade 10 Acids and Bases
Which of the following statements correctly characterizes salts?
  1. Salts conduct electricity in the solid phase.
  2. Salts conduct electricity in all phases.
  3. Salts conduct electricity in the liquid phase.
  4. Salts do not conduct electricity at all.
Grade 10 Acids and Bases
Which of the following processes does NOT result in the formation of a salt?
  1. A reaction between a weak acid and a weak base
  2. Neutralization Reaction
  3. Decomposition
  4. None of the Above
Grade 10 Acids and Bases
Which of the following statements correctly characterizes the nature of salts, in terms of charge?
  1. Salts are electrically positive.
  2. Salts are electrically negative.
  3. Salts are electrically neutral.
  4. None of the above
Grade 10 Acids and Bases
What of the following is NOT true about bases?
  1. feels slippery
  2. tastes bitter
  3. turns blue litmus paper red
  4. good conductor of electricity
  5. water soluble
  6. very reactive
Grade 10 Acids and Bases
Three ways substances can dissolve in water are                                         .
  1. dissociation, solvent, and dispersion
  2. dissociation, ionization, and dispersion
  3. dispersion, ionization, and dissolve
  4. solution, solute, and solvent
Grade 10 Acids and Bases
During the formation of a solution, energy is                              .
  1. neither released nor absorbed
  2. either released or absorbed
  3. either released nor absorbed
  4. created and destroyed
Grade 10 Acids and Bases
Which of the following statements is NOT always true about salts?
  1. Salts are always very soluble in water.
  2. Salts consist of cations and anions.
  3. Salts conduct electricity in the liquid phase.
  4. Salts are ionic in nature.
Grade 10 Acids and Bases
Which of the following sentence best describes a buffer?
  1. Buffers change the pH of solutions by decreasing acidity or basicity of solutions.
  2. Buffers resist change in pH of solutions by neutralizing excess acid or base
  3. Buffers change the pH of solutions by increasing acidity or basicity of solutions.
Grade 10 Acids and Bases
How do the concentrations of hydronium ions and hydroxide ions compare to one another, assuming that neutralization has occurred?
  1. They are equal in concentration.
  2. There is a higher concentration of hydronium ions.
  3. There is a higher concentration of hydroxide ions.
  4. Hydronium ions and hydroxide ions are not present in a neutralization reaction.
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