Chemistry

Welcome to your Chemistry  MCQ practice assessment.

Click NEXT   to start.

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

The properties of solution include all of the following except that

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

What is the charge of a hydrogen atom?

It is considered as derivatives of ammonia in which one or more of the hydrogens have been replaced by the alkyl or aryl group.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

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

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

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.

Electrons occupy all the orbitals of a given subshell singly before pairing begins. These unpaired electrons have parallel spins. This is known as: a. Building Up Principle

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

The numerical value for standard pressure of any gas is

Whenever you have equal volumes of gases at the same temperature and pressure, the volume must

An instrument that separates particles of different isotopic composition and measure their individual relative masses

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

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

Compounds which contain only carbon and hydrogen are called

It is the scattering of light by colloidal particles

If heat is absorbed by the system during a chemical change, it is called as

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

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

Leave a Reply