Result:
1/10
1. Which food item contains lactic acid?
Lemon
Vinegar
Buttermilk
Tomato
2/10
2. What is the primary acid in apples?
Citric acid
Oxalic acid
Malic acid
Acetic acid
3/10
3. What type of indicator is used to observe the range of pH levels?
Red and blue litmus
Phenolphthalein
Universal indicator
Methyl Orange
4/10
4. Which acid is common in many laboratory settings and is extremely corrosive?
Ascorbic acid
Acetic acid
Sulfuric acid
Citric acid
5/10
5. What gas is produced when an acid reacts with magnesium metal?
Oxygen
Nitrogen
Hydrogen
Carbon dioxide
6/10
6. What sound is heard when hydrogen gas burns in the presence of a flame?
A hissing sound
A popping sound
A whistling sound
A crackling sound
7/10
7. Who discovered hydrogen gas?
Albert Einstein
Henry Cavendish
Marie Curie
Isaac Newton
8/10
8. Why are metal containers not used to store pickles?
They are expensive
Metals react with acids, leading to corrosion
They are heavy
They absorb flavors
9/10
9. What type of containers is commonly used to cook dishes with curd and buttermilk?
Plastic containers
Metal containers
Earthen vessels
Glass jars
10/10
10. Which acid is commonly used in motor vehicle batteries?
Acetic acid
Citric acid
Sulfuric acid
Nitric acid