Question

select the correct answer. which of the following tests could be safely used to distinguish a strong base from a weak base? a. taste b. touch c. litmus paper d. electrical conductivity

Explanation:

Step1: Analyze option A

Tasting chemicals (even bases) is extremely dangerous and not a valid or safe test method.

Step2: Analyze option B

Touching bases (especially strong bases which can be caustic) is also very dangerous and not a proper test.

Step3: Analyze option C

Litmus paper only tells if a substance is a base (turns blue) but does not distinguish between strong and weak bases.

Step4: Analyze option D

Strong bases dissociate completely in solution and have a high concentration of ions, leading to high electrical conductivity. Weak bases dissociate only partially, resulting in a lower concentration of ions and lower electrical conductivity. So electrical conductivity can safely distinguish between them.

Answer:

D. electrical conductivity