Question

a student was asked to collect apparatus for lab store for doing experiment of ph of given sample , identify the article which he is not supposed to pick
A= ph paper
B= dropper
C= litmus paper
D= petri dish​

Answer 1

Answer:

As pH paper turns greenish blue for weakly basic compound and antacids contain weak base like

Mg(OH)2. So, an antacid would change the colour of this pH paper to greenish blue. Other options (a)

and (b) contain acids and option (c) is a neutral salt.

Explanation:

Petri dish is not required for doing experiment of pH.

As pH paper turns greenish blue for weakly basic compound and antacids contain weak base like

Mg(OH)2. So, an antacid would change the colour of this pH paper to greenish blue. Other options (a)

and (b) contain acids and option (c) is a neutral salt.

Answer 2

Answer:

(d) Petri dish is not required for doing experiment of pH

Explanation:

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