Chemistry Questions

The pH of a solution, whose hydrogen ion concentration is 1 x 10 mole per litre, will be ____.

CuO + H2 ---> Cu + H2O. This equation is an example of

Which of the following is NOT a radioactive element?

Two or more elements combine to form a

If the first and third members of a Dobereiner triad are Phosphorous and Antimony, the second member of this triad is

Which of the following is used in the preparation of tincture iodine, cough syrup and many tonics?

There are 15 protons and 22 neutrons in the nucleus of an element. What is its mass number?

What is the name of the process where gas is directly converted to solids called?