Properties of Acid

Q.

Which one of the following will turn blue litmus red?

1. Vinegar

2. Lime water

3. Baking soda solution

4. Washing soda solution

Q.

What change will you observe if you test soap with litmus paper (red and blue)?

Q. Acids are _____ in taste.

1. sour
2. sweet
3. bitter
4. salty

Q. Dilute acid have less acid and more water in its solution.

1. True
2. False

Q. What happens to blue litmus paper when it is dipped in vinegar?

1. It turns red.
2. It turns dark blue.
3. It turns black.
4. It turns green.

Q. _______ gas burns with a pop sound.

1. Carbon dioxide
2. Hydrogen
3. Nitrogen
4. Sulphur dioxide