Test your knowledge of chemistry with our online multiple choice questions. Improve your understanding of chemistry concepts with our free MCQs. Twenty (20) MCQ questions from our test bank will be randomly shown for every attempt. Passing mark for this test is 70%.

Objectives: To provide a comprehensive online resource for chemistry MCQs, helping users to test and improve their knowledge of chemistry concepts.

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It is a borosilicate glass with a very low coefficient of thermal expansion, hence, it's wide for cooking and serving utensils

How many moles of are present in 44.8L of at STP?

When the same elements can form two different two compounds, the ratio of masses of one of the elements in the two compounds is a small whole number relative to a given mass of the other element. This is known as:

The properties of solution include all of the following except that

It is a product of the weathering of complex silicates, particularly of feldspars which are abundant minerals

It is the scattering of light by colloidal particles

Term used to denote the technology of treating a mined ore to obtain a product higher on concentration of a wanted mineral from the unwanted rock mass in which it occurs.

The numerical value for standard pressure of any gas is

It refers to matter that do not have definite form or structure

The element which has a mass of about 9 amu is Berylium (Be), atomic number 4. What is the charge on the Be atom?

Compounds which contain only carbon and hydrogen are called

The ratio of density of the test liquid to the density of a reference Liquid is called:

The horizontal arrangement of elements of increasing atomic number in a Periodic table is called:

The elements that a compound is composed of are present in fixed and precise proportion by mass. This is known as:

An example of a ternary compound is

These are compounds containing water molecules loosely bound to the other components

If a more active element replaces a less active one in a compound, the reaction is:

The impossibility of knowing both the precise location and velocity of subatomic particle at the same time is known as the

The statement “mass is neither created nor destroyed in a chemical reaction” is known as: