Salts

hydrochloric acid + calcium carbonate ---> .......... + water + carbon dioxide

• calcium sulfate

• calcium chloride

• calcium hydroxide

• calcium nitrate

hydrochloric acid + magnesium ---> .......... + hydrogen

• magnesium sulfate

• magnesium chloride

• magnesium hydroxide

• magnesium nitrate

hydrochloric acid + sodium hydroxide ---> .......... + water

• sodium chloride

• acid hydroxide

• chlorine oxide

• acidic sodium

The reaction between acid and alkali to produce salt and water is called as ..........

• oxidation

• reduction

• neutralization

• precipitation

Which of the following substances is a base?

• sulfur dioxide

• carbon dioxide

• nitrogen dioxide

• magnesium oxide

Which gas is produced when metal reacts with acid?

• Hydrogen

• Oxygen

• Carbon dioxide

• Nitrogen

Which gas is produced when metal carbonates reacts with acid?

• Hydrogen

• Oxygen

• Carbon dioxide

• Nitrogen

What is the name of the method described in the picture to get solid salt from the solution?

• Evaporation

• Distillation

• Filtration

• Extraction

The method described in the picture is ........

• Evaporation

• Distillation

• Filtration

• Extraction

What is the pH of a neutral salt?

• <7

• 7

• >7

• 0