In the laboratory preparation of oxygen, dried oxygen is ...
In the laboratory preparation of oxygen, dried oxygen is usually collected over
hydrochloric acid
mercury
calcium chloride
tetraoxosulphate (VI) acid
Correct answer is B
No explanation has been provided for this answer.
In linear molecules, the bond angle is ...
Before a reaction could take place, there should be ...
The electrons of two atoms Y and Z are arranged in shells as shown above. The bond formed betwe...
Which of the following statements is correet for a reaction at equilibrium? ...
An acid and its conjugate base...
What is the chemical symbol for Silver? ...
The cleansing action of soap in hard water is not satisfactory because soap ...