question_answer

DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 2 Three different substances were taken and tested with litmus paper. The results are given below. Based on the results answer the questions 43 to 48.

Type of Litmus	X	Y	Z
Red litmus	turns blue	no change	no change
Blue litmus	no litmus	turns red	no change

Which of the following could be the substance Z?

A)  \[{{\text{H}}_{\text{2}}}\text{S}{{\text{O}}_{\text{4}}}\]                     

B)  \[\text{HN}{{\text{O}}_{\text{3}}}\]

C)  \[\text{KOH}\]                       

D)  \[{{\text{H}}_{\text{2}}}\text{O}\]