
Which one is not a Chemistry career?
These chemicals are used in food processing except..
What are the variables of the experiment?
An experiment is carried out to study the solubility of sodium chloride in water and in benzene. What is the
(i) manipulated variable and
(ii) constant variable
of the experiment?
Which of the following affects the amount of sodium chloride that can dissolve in water?
Which of the following symbols represents an oxidizing agent?
What precaution must be taken when storing a chemical with this label?
When heating solution in a boiling tube, what precaution must you take?
An experiment should be carried out in the fume cupboard if it involves
Why is it important to understand the experimental procedures before carrying out the experiment?
The answer more than one
What are the benefits for our country from producing chemicals locally?
The answer more than one
What is the purpose of wearing gloves during experimenting?
The following equipment is safety equipment in the laboratory except
Reactive metals Q must be stored in the paraffin oil to prevent reaction with the moisture in the air. What is Q?