Test your knowledge of chemistry with MCQTRIP.COM 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%.

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

It is the scattering of light by colloidal particles

Calculate the ratio of the rate of diffusion of hydrogen to the rate of diffusion of oxygen. How fast does hydrogen diffuse than oxygen? Given: Density of oxygen is 0.0899 g/L and the density of oxygen is 1.43 g/L

A homogenous mixture can be separated by all of the following methods except

The amount of energy needed to change a given mass of ice to water at constant temperature is called the heat of

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

What pressure must be applied to 225mL of gas at 1atm to reduce its volume to 100mL?

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

Three grams of sulphur dissolved in 200 g of naphthalene C10H8, was found decreasing the freezing point of the solvent to 0.72 ⁰C. Find the molecular weight of the solute. (Kf C10H8 = 6.9 ⁰C/molar)

Which of the following is not a pure substance?

It is considered as derivatives of ammonia in which one or more of the hydrogens have been replaced by the alkyl or aryl group. It is characterized by unpleasant odors

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

What is the volume of 1 moles of a gas at 2 atm and 273 K?

If a single reactant is transformed by heat or electricity into two or more products, the type of reaction is

If the volume of the mole of gas molecules remains constant, lowering the temperature will make the pressure

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

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

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

What kind of chemical bond will form in binary compounds where the electronegativity difference between atoms is greater than 2.0

An example of a ternary compound is