ACIDS AND ALKALIS - 3 NEUTRALISATION

Product of neutralization reactions are always :

• an acid and a base.

• a salt and a base.

• a salt and water.

• an acid and a salt.

Which of the following is used to neutralise the bee sting?

• ammonia

• sodium hydrogen carbonate / baking soda

• lime water

• washing soda

What colour changes will occur when an acid containing universal indicator is neutralised ( neutralisation reaction) by an alkali?

• green

• red

• blue

• violet

To reduce the acidity , farmers and gardeners spread an alkali called _____________________on the soil to neutralise the acid.

• vinegar

• lime (calcium oxide)

• Baking soda

• milk of magnesia

The antacid used to neutralise stomach acid is ____________.

• magnesium hydroxide or milk of magnesia

• calcium oxide

• sodium hydroxide

• vinegar