Question

Which statement is incorrect? *

(a) When exposed to air silver articles covered with a black layer of silver sulphide

(b) Titanium, uranium and zirconium are used for atomic energy, space research and defence purpose that's why called as strategic metals.

(b) Cu is a major component in brass, bronze and stainless steel.

(d) Royal water also called as aqua-regia is an oxidising agent

​

Answer 1

Answer:

d is the correct answer and please follow me

Answer 2

Answer:

D will be correct answer .

plz add my answer as brainlist answer . and follow me ❤️