Question

Four students were given colourless liquids A, B and C of water lemon juice, a mixture
of water and lemon juice respectively, after testing these liquids with PH paper
following sequences in colour change of PH paper were reported [ ]
1. Blue Red and Green
2. orange green and green
3. Green red and red
4. Red Red and Green
A.3
B. 1,2
C.3, 4
D. 2,4

please say right option​

Answer 1

Answer:

since water has ph range of about 7-7.4 therefore it is neutral its colour on ph paper will be green

lemon juice is acidic therefore colour of ph paper will be red (acidic)

mixture of lemon juice is also acidic (5-6ph) therefore colour of ph paper will be red

option A is correct.

Answer 2

Explanation:

The given solutions are respectively neutral, acidic and acidic solution

AQ

BII

CIII

D I V