Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemistry in Everyday Life
When blue litmus paper is kept in acetic acid, the blue litmus paper turns to which colour?
1
Yellow
2
Violet
3
Red
4
More than one of the above
5
None of the above