S + P+ → P + S +
Q + S+ → S + Q+
R + P+ → P + R+
S + Q+ → Q + S+
Correct answer is B
No explanation has been provided for this answer.
H+
Cu2+
OH-
CI-
Correct answer is B
No explanation has been provided for this answer.
Which of the following substances decomposes when an electric current is passed through it?
Glucose solution
Zinc rod
Hydrochloric acid
Tetrachlormethane
Correct answer is C
No explanation has been provided for this answer.
Oxygen
Hydrogen
Nitrogen
Copper
Correct answer is D
No explanation has been provided for this answer.
What is the oxidation number of nitrogen in AI(NO3)3?
+ 1
+ 3
+ 5
+ 6
Correct answer is C
No explanation has been provided for this answer.