What do alkalis have in common Salina

What is the common feature of all alkalis?

• They feel oily to touch

• They contain hydroxide particles (OH)

• They are used only in cleaning products

• They are always safe to touch

Which alkali is commonly used in cleaning products?

• Calcium hydroxide

• Magnesium hydroxide

• Sodium hydroxide

• Potassium hydroxide

What is the pH range for alkalis?

• 1 to 7

• 8 to 14

• 0 to 6

• 15 to 20

Which alkali is used by gardeners to reduce soil acidity?

• Sodium hydroxide

• Magnesium hydroxide

• Calcium hydroxide

• Potassium hydroxide

If alkali A has a pH of 9 and alkali B has a pH of 12, which alkali is stronger?

• Alkali A

• Alkali B

• Both are equally strong

• Cannot be determined

Which alkali is most likely to be used in indigestion remedies?

• Sodium hydroxide

• Calcium hydroxide

• Magnesium hydroxide

• Potassium hydroxide