Which of these is true about a pH meter? It is inexpensive to use.
It measures pH indirectly.
It does not require calibration.
It can be used in any acid-base titration.

That is, a pH meter is useful in detecting or knowing the acidity (due to ions) or alkalinity (due to ions) of a solution. Thus, we can conclude that out of the given options it is true about a pH meter that it can be used in any acid-base titration

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.