16 Questions
What remedy would you suggest for a problem of acidity after overeating?
Baking soda solution
Which substance can change the color of blue litmus to red?
Lemon juice
Which natural indicator can change color when exposed to acids and bases?
Turmeric
What color change does turmeric undergo when exposed to a basic substance?
Red to yellow
What happens to a stain of curry on a white cloth when soap, which is basic in nature, is scrubbed on it?
It becomes reddish-brown
Which synthetic indicator can be used to test for acids and bases?
Methyl orange
Which plant does litmus solution come from?
Lichen
What is the color of litmus solution when it is neither acidic nor basic?
Purple
What do indicators such as red litmus, blue litmus, phenolphthalein, and methyl orange do?
Indicate the presence of acid or base in a solution
What are substances that change their odor in acidic or basic media called?
Olfactory indicators
What are substances like red cabbage leaves, turmeric, and colored petals of certain flowers commonly referred to as?
Acid-base indicators
What are red cabbage leaves, turmeric, and colored petals of certain flowers used for in chemistry?
To indicate the presence of acid or base in a solution
In the given activity with finely chopped onions and cloth strips, what are the cloth strips used for?
To test for acids and bases based on odor change
What are substances like vanilla essence and clove oil used for in the given activity?
To test for acids and bases based on odor change
What do red litmus paper, blue litmus paper, phenolphthalein, and methyl orange have in common?
They are all acid-base indicators
What do red litmus paper, blue litmus paper, phenolphthalein, methyl orange, vanilla essence, and clove oil have in common?
They are all acid-base indicators
Test your knowledge of acids, bases, and their properties with this quiz. See if you can determine the appropriate remedy for acidity and identify the properties of acids and bases involved in the choice.
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