Chemistry-10 Reaction with Acid and Water

The formula HCl stands for

• hydrochloric acid

• sodium hydroxide

• hydrogen peroxide

• the hydronium ion

Sodium hydrogen carbonate when added to acetic to acid evolves a gas, which of the statement is true about the gas evolved

• it turns limewater milky

• it changes the soln colorless

• it burns with a pop sound

• it has a pungent smell

What are the products for the reaction of metal with acid?

• metal salt and hydrogen

• metal

• metal salt

• acid

Which salt will be produced if magnesium react with hydrochloric acid?

• magnesium oxide

• magnesium sulfate

• magnesium sulfate

• magnesium chloride

What are the products formed when you react zinc with sulfuric acid?

• zinc sulfate and hydrogen

• zinc sulfate and water

• zinc sulfide and hydrogen

Which group of the periodic table are alkali metals found in?

• Group 1

• Group 2

• Group 7

• Group 8

Which of the followings is the most reactive alkali metal in water?

• Lithium

• Sodium

• Potassium

• Hydrogen

What is formed when sodium reacts with water?

• Sodium oxide and hydrogen

• Sodium hydroxide and hydrogen

• Sodium hydroxide and oxygen

• Sodium hydroxide and carbon dioxide

What is the symbol equation for the reaction between Potassium and water?

• 2K + 2H₂O → 2KOH + H₂

• 2Na + 2H₂O → 2NaOH + H

• 2K + H₂O → 2KOH + CO₂

• 2Na + 2H₂O → 2NaOH + CO₂

Which of the followings is not an alkali metal?

• Li

• Cl

• K

• Cs