General Study Notes Quiz

In which branch of chemistry behavior of gases and liquids is studied?

Define biochemistry?

Which branch of chemistry deals with preparation of paints and paper?

In which branch of chemistry metabolic processes of carbohydrates and proteins are studied?

Which branch of chemistry deals with atomic energy and its uses in daily life?

Which branch of chemistry deals with the structure and properties of naturally occurring molecules?

Matter is anything that has mass and occupies space.

What is a substance?

What is a mixture?

Chemical properties of a substance depend upon its physical state.

Which of the following is NOT a mixture?

An element is a substance made up of the same type of atoms.

Which of the following is a non-metal?

The symbol for carbon is 'C'.

What is valency?

The valency of oxygen is 3.

What is a compound?

Which of the following is an example of a compound?

The molecular formula of water is H2O.

Which of the following is an example of a homogeneous mixture?

The atomic number of an element is equal to the number of protons in the nucleus of its atoms.

What is the mass number of an atom?

The atomic mass unit (amu) is defined as one-twelfth the mass of an atom of carbon-12.

The empirical formula of a compound is the simplest whole number ratio of atoms present in a compound.

What is the difference between an empirical formula and a molecular formula?

The molecular mass of a compound is the sum of the atomic masses of all the atoms present in one molecule of that compound.

An ion is an atom or group of atoms having a charge.

What type of ion is formed when an atom gains electrons?

Which of the following is a molecular ion?

A free radical is an atom or group of atoms that has an odd number of unpaired electrons.

Which of the following is NOT a good example of a diatomic molecule?

A polyatomic molecule is a molecule consisting of more than two atoms.

The number of particles in one mole of a substance is called Avogadro's number.

The molar mass of a substance is the atomic mass, molecular mass or formula mass of a substance expressed in grams.

The atomic number of an atom is the same as the number of neutrons in its atom.

What are the contributions that Rutherford made to the development of the Atomic Theory?

What is the name of the particle discovered by J.J. Thomson?

What is the difference between Bohr's atomic theory and Rutherford's atomic theory?

Niels Bohr's atomic model was based on the idea that electrons revolve in fixed orbits around the nucleus.

An electron can absorb or emit energy continuously as it revolves around the nucleus.

The energy of an electron is quantized; meaning it can only have certain specific energy values.

The energy of an electron is emitted or absorbed only when it moves from one orbit to another.

Explain the concept of a shell in an atom.

Which of the following shells can accommodate the maximum number of electrons?

The maximum number of electrons that can be accommodated in a 'p' subshell is 6.

How many electrons are there in an atom of potassium?

Write the electronic configuration of chlorine.

What is an isotope?

The isotopes of carbon are C-12, C-13 and C-14.

Isotopes of a particular element have the same number of electrons, but different atomic numbers.

The existence of an element in more than one form in the same physical state is called allotropy.

The different allotropic forms of carbon are diamond, graphite, and fullerene.

What are the uses of isotopes?

Which of the following is NOT a characteristic of a gas?

The rate of diffusion of a gas increases with increasing temperature.

Which of the following laws states that the volume of a fixed mass of a gas is inversely proportional to its pressure at constant temperature?

Charles's Law states that the volume of a fixed mass of a gas is directly proportional to its absolute temperature at constant pressure.

The pressure exerted by the atmosphere at sea level is called standard atmospheric pressure.

At a constant temperature, if the pressure on a sample of gas is raised three times, what will happen to its volume?

The process of changing of a liquid into a gas phase is called evaporation.

Evaporation is an endothermic process which leads to the cooling effect of a liquid.

What is the term used to define the pressure exerted by the vapors of a liquid at equilibrium with the liquid at a particular temperature?

The boiling point of a liquid is defined as the temperature at which the vapor pressure of a liquid becomes equal to the atmospheric pressure or any external pressure.

The boiling point of a liquid depends upon the strength of intermolecular forces and the external pressure.

The freezing point of a liquid is the temperature at which the vapor pressure of the liquid phase becomes equal to the vapor pressure of the solid phase.

Which of the following has the highest density?

The melting point of a solid is the temperature at which the solid state transitions into a liquid state.

Amorphous solids have a definite three-dimensional pattern of arrangement of particles.

The existence of a solid in different physical forms is called allotropy.

What are the important factors that influence the solubility of a solute in a solvent?

Ionic compounds are generally more soluble in polar solvents than in non-polar solvents.

The solubility of most solids increases with increasing temperature.

A solution is a homogeneous mixture of two or more components, where each component retains its individual identity.

Explain the difference between a suspension and a colloid.

The Tyndall effect is observed in both solutions and colloids.

Which of the following is a good example of a colloid?

What is a saturated solution?

Dilution of a solution is the process of adding more solvent to a solution.