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WorksheetsClass 10th - Acid and Bases
Total questions: 32
Worksheet time: 1hrs 5mins
............... are used to neutralise acid in the stomach.
Toothpastes
Bacterias
Antacids
More strong acids
which of the following salts does not contain water of crystallisation?
Blue vitriol
Baking soda
Washing soda
Gypsum
Plaster of Paris is obtained by heating:
Gypsum
Limestone
Sodium chloride
Acetic acid
Metal hydrogen carbonates react with acids to give
salt ,water , chlorine
salt , water and carbon di oxide
salt and carbon di oxide
salt , hydrogen and carbon dioxide
which of the following is used for dissolution of gold?
Hydrochloric acid
Sulphuric acid
Nitric acid
Aqua regia
The pH of the gastric juices released during digestion is -
less than 7
more than 7
equal to 7
equal to 0
Which is the most likely pH for a solution of a weak acid?
1
5
11
14
When the pH of a solution becomes more basic, the number on the pH scale
decreases
increases
stays the same
triples
What is the pH of a solution that results from the complete neutralization of an HCl solution with a KOH solution?
1
7
10
4
When an acid and a base are mixed, what is the reaction called?
Neutralization
Hydrolyzed
Hydro Ionization
A salt and a water reaction
In a water solution, how do acids differ from bases?
Acids form salts, but bases do not
Acids turn litmus blue, while bases turn litmus red
Acids form hydrogen ions (H+), while bases form hydroxide ions (OH-)
Bases form salts, but acids do not
Marti took a balloon and filled it with 14 grams of baking soda. She then put 40 mL of vinegar into an empty water bottle. Marti stretched the balloon onto the top of the bottle and recorded the mass. She then flipped the balloon up so the baking soda fell into the vinegar. She observed it bubbling and could hear it fizzing. Marti laughed as the balloon filled with the carbon dioxide that was given off. After the reaction stopped, on the bottom of the bottle, Marti notices a white and clear substance. She remembers that she had learned that when you mix an acid (Vinegar) and a base (baking soda), you create
acid and metal
acid and base
base and water
salt and water
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.
Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a oily feel, a bitter taste, and a _______.
Acids; pH less than 7
Acids; pH greater than 7
Bases; pH greater than 7
Bases; pH less than 7
A substance is found to have the following characteristics:
Very bitter taste
Feels slippery to the touch
Produces OH- ions when dissolved in water
In what category would the substance be classified?
acid
base
enzyme
fatty acid
Milk is a very weak acid. What might its pH value be?
6.5
7.8
4.2
12.2
All bases have a sour taste.
True
False
A salt of sodium that is used to treat hardness of water is
sodium hydrogen carbonate
sodium carbonate decahydrate
sodium sulphate
sodium hydroxide
