Question

7. These are mostly used for testing the gases in the laboratory,
A Methyl orange B. Hydrochloric acid C. phenolpthalene D. Acetic acid​

Answer 1

Answer:

option a is the answer........

Answer 2

Answer:

$\huge{ \underline{ \mathtt{ \red{ ☆A} \pink{N} \green{S} \blue{W} \purple{E} \orange{R}}}}$

Explanation:

Methyl orange

Phenolpthane

keep smiling:)

thanks for asking;)