A scientist mixes an unknown powder into a beaker of water. He then uses an indicator and finds that the pH of the resulting solution is 8.5. What can he infer from this observation?

The unknown powder was acidic.

The unknown powder decreased the hydrogen ion concentration of the water.

The indicator used can measure only basic solutions.

The powder contains hydrogen ions.

Question

A scientist mixes an unknown powder into a beaker of water. He then uses an indicator and finds that the pH of the resulting solution is 8.5. What can he infer from this observation? 

 The unknown powder was acidic. 

 The unknown powder decreased the hydrogen ion concentration of the water. 

 The indicator used can measure only basic solutions. 

 The powder contains hydrogen ions.

akashdeepdeb · Answer

Water has an average neutral pH of 7!
Now it has become greater towards 14 after adding CHEMICAL X :D
So it became basic?
So which option? :)

anonymous · Answer

b