Question

Which of the following best describes bases?

A They feel slippery and taste sour.

B They turn red litmus paper blue and react with metals.

C They taste bitter and react with carbonates.

D They turn red litmus paper blue and taste bitter

Answer 1

They turn moist red litmus paper blue and they react with metals.

They turn moist red litmus paper blue because they have a pH range of 8-14, hence they are indicated by a blue colour of the litmus.

They react with metals because they are reactive, the reaction forms a metal salt and water.