Chemistry Quiz

What is the natural substance obtained from lichens that is used as an indicator?

• Rose petals

• Turmeric

• Litmus

• Vinegar

Which of the following solutions would turn red litmus paper blue?

• Lemon juice

• Vinegar

• Soap solution

• Amla juice

What type of substance is tap water?

• Acidic

• Basic

• Neutral

• Alkaline

Which acid is found in tamarind?

• Citric acid

• Ascorbic acid

• Tartaric acid

• Oxalic acid

What happens when an acid is mixed with a base?

• It becomes more acidic

• It becomes more basic

• It neutralizes

• It explodes

What does an ant bite inject into the skin?

• A base

• An alkaline solution

• An acidic liquid

• A neutral substance

What can be used to treat acidic soil?

• Manure

• Lime

• Compost

• Fertilizers

What is the color of red rose extract in a basic solution?

• Red

• Blue

• Green

• Yellow

Which of the following is an olfactory indicator?

• Turmeric

• Rose extract

• Onion

• Litmus

What is the use of turmeric paper?

• To test acidic substances

• To test basic substances

• To test neutral substances

• To test all types of substances