Acid, Bases and Salts

Which of the following is an acid?

• Sodium Hydroxide

• Sodium chloride

• Sulphur dioxide

• Malik acid

Acids have soapy texture. True or False?

• True

• False

Substance which indicate if a substance is acid or basic is called a ___________.

• China rose petals

• Indicators

• Turmeric

• All of these

What does Gudhal mean?

• Acid

• Turmeric in russian

• China rose petals

• Salt in a dissolved form

Potassium Hydroxide is present in ?

• Banana

• Rust

• Window cleaner

• Soap

Litmus is extracted from —— ? What is mauve?

• Mosses, litchis

• Mosses, lichens

• Lichens, purple

• Lichens, magenta.

What will happen when acid is poured into the blue litmus and red litmus paper

• Blue litmus becomes colourless in acid and red litmus turns into blue in base

• Blue litmus turns red in acid and red litmus turns into black in base

• Both a and b

• Red litmus turns blue in base and blue litmus turns red in acid

What is the ph scale in acid base and neutral solutions?

• 7, 8 , 10

• 1, 7, 14

• 14 , 7, 1

• 5 , 0

What is formed during neutralisation?

• Sodium hydroxide

• Salt and nichrome

• Salt

• Water ( distilled )

Which form of Turmeric is used as an indicator?

• Strips

• Paste

• No change

• Liquid