Acids, Bases and salts

acids are .............................

• Acids are electron acceptors.
• Acids are neutral substances.
• Acids are always solid at room temperature.
• Acids are sour in taste

A Basic substance is ...................................

• A basic substance is bitter in taste and feel soapy

• A basic substance is a rare mineral.
• A basic substance is a complex organic molecule.
• A basic substance is a type of metal.

Solutions of substances that show different color in acidic, basic and neutral solutions are called .................................

• pH buffers
• Acidic solutions
• indicators

• Neutral compounds

litmus is extracted from .............

• moss
• algae
• fungi
• lichens

acid turns red litmus to .....................

• yellow
• blue
• green
• red

phenolphthalein solution turns into ......................... when comes in contact with base

• blue
• green
• colorless
• pink

the reaction between an acid and a base is known as ...............................

• oxidation
• reduction
• combustion
• neutralization

Acid + Base =

• Acid + Acid
• Base + Base
• Water + Water
• Water + Salt

china rose turns acidic solutions to ................... and basic solutions to ............................

• yellow; red
• green; blue
• dark pink; green

• blue; purple

is turmeric a indicator

• No, turmeric is not an indicator.
• Yes, turmeric is an indicator.