acids and bases

Which of the following is a base?

• orange juice
• water
• vinegar
• dishwashing detergent

Most foods are 

• Acid
• Basic
• Neutral
• salts

Tastes Sour

• Acids
• Bases
• Salts
• All

Tastes bitter.

• Acids
• Bases
• Salts
• All

Products of a neutralization reaction are always:

• an acid and a base

• an acid and a salt

• a salt and water

• a salt and a base

Turmeric is a natural indicator. On adding its paste to acid and base separately, which colours would be observed.

• Yellow in both acid and base

• Yellow in acid and red in base

• Pink in acid and yellow in base

• Red in acid and blue in base

Name the acid present in our stomach.

• Sulphuric acid

• Hydrochloric acid

• Nitric acid

• Carbonic acid

Name the acid present in sting of an ant.

• Phenolphthalein

• Citric acid

• Hydrochloric acid

• Formic acid

Phenolphthalein is a synthetic indicator and its colours in acidic and basic solutions, respectively are:

• pink and colourless

• blue and red

• red and blue

• colourless and pink

Which of the following set of substances contain acids?

• Curd, vinegar

• Curd, milk of magnesia

• Vinegar, soap

• Grapes, lime water