Question

Acids, acidic oxide and acidic salts :
(a) will turn red litmus blue
(b) will turn blue litmus red
(c) will turn pH paper orangish red
(d) will turn pH paper green

• A. (a) and (b)
• B. (b) and (c)
• C. (c) and (d)
• D. (a) and (d)

Answer 1

Answer: (B)

(b) and (c)

Acids and substances of acidic nature have property to change colour of blue litmus to red. They also turn pH paper to orangish red.