Acid, Bases and Salt

______ feel slippery to touch.

The most commonly used natural indicator.

• Turmeric

• Tap water

• Salt

• China rose

Litmus is extracted from __________.

Lime water changes the colour of blue litmus paper to

• Purple

• Pink

• Red

• Green

Sodium bicarbonate is commonly called

• Washing soda

• Vinegar

• Baking soda

• Lime water

Provide the chemical name of below acid or base

a) Lime water

b) Soap

• a) Calcium hydroxide, b) Magnesium hydroxide

• a) Ammonium hydroxide b) Potassium hydroxide

• a) Calcium hydroxide b) Potassium hydroxide

• a) Barium hydroxide b) Sodium hydroxide

Lemon juice, orange juice taste sour because they contain____________.

Ants string is an example of

• Ascorbic acid

• Formic acid

• Lactic acid

• Calcium hydroxide

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Indicator is a substance that shows different colours in acid and basic solution.

• False

• True

Lime Water is a solution of Ammonium hydroxide

• True

• False