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Acids

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Questions and Answers

What is the taste of bases?

Sweet
Sour
Bitter (correct)
Salty

What type of substance changes the colour of blue litmus to red?

Base
Salt
Acid (correct)
Sugar

What happens when soap, which is basic in nature, is scrubbed on a stain of curry on a white cloth?

It turns green
It turns reddish-brown (correct)
It turns pink
It turns blue

Which of the following is not a natural indicator?

Methyl Orange (B) Signup and view all the answers

What is the effect of washing a curry stained cloth with plenty of water after scrubbing it with soap?

It turns yellow (C) Signup and view all the answers

What is the color of a litmus solution when it is neither acidic nor basic?

Purple (C) Signup and view all the answers

What is the source of litmus solution?

Lichen (A) Signup and view all the answers

Which of the following is not used as an acid-base indicator?

Rose petals (A) Signup and view all the answers

What is the color of litmus solution in a neutral state?

Purple (A) Signup and view all the answers

What is the plant division that lichen, the source of litmus solution, belongs to?

Thallophyta (D) Signup and view all the answers

Which of the following flowers can be used as an acid-base indicator?

Hydrangea (C) Signup and view all the answers

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