Question

P reacts with oxygen to form Q . Q on reaction with water forms a new substance R that turns red litmus blue . identify P,Q and R respectively. Write down the equations involved

Answer 1

Answer:

P is ca (calcium)

Q is Ca0 (calcium oxide)

R is Ca(OH)2 ( calcium hydroxide )

Explanation:

Ca + O2 = CaO

CaO + H20 = Ca(OH)2

calcium hydroxide is a base so it will turn red litmus blue

Answer 2

Answer:

P is ca (calcium)

Q is cao (calcium oxide)

R is ca(oH)2 (calcium hydroxide)

Explanation:

ca+o2=caO

caO+H2O=ca(OH)2

As you know calcium hydroxide is a base so it turns red litmus to blue..