In third order reaction the minimum number of molecules necessary for the reaction to take place is

• A) Four
• B) One
• C) Two
• D) Three

In _________reactions/kinetics, the rate of a reaction does not depend on the substrate

• A) pseudo first order
• B) zero order
• C) second order
• D) third order

The rates of the ________ do not vary with increasing nor decreasing reactants concentrations

• A) First order reactions
• B) Zero order reactions
• C) Third order reactions
• D) Second order reactions

1 ppt is 1000-fold more dilute than 1 ppb and ___________ more dilute than 1 ppm.

• A) 10-fold
• B) 1000-fold
• C) 10000000-fold
• D) 1000000-fold

_______is a liquid or solid with liquids dispersed through them.

• A) Foam
• B) Emulsion
• C) Gel
• D) Aerosol

The boiling points of solutions are all higher than that of the _______?

• A) pure solute
• B) none of these
• C) pure solvent
• D) solute & solvent

What is the primary characteristic of ionic solutions?

• A) They do not conduct electricity
• B) They contain ions
• C) They consist of covalent bonds
• D) They are always gases

What does the enthalpy of solution measure?

• A) The heat released when a solution is formed
• B) The total energy change during a chemical reaction
• C) The boiling point of a solution
• D) The amount of solute dissolved in a solution

The general form of __________ describes the force of attraction between charges: F = kq1mq2 / r2

• A) Coulomb's law
• B) Henry's law
• C) Raoult's law
• D) Hess's law

Which of the following factors influences the enthalpy of solution the most?

• A) Solution volume
• B) Solute particle size
• C) Solvent polarity
• D) Solute-solvent interactions

Adding solutes to an ideal solution results in a ___________ entropy.

• A) zero
• B) negative
• C) constant
• D) positive

Most sulfide, carbonate and phosphate salts are ________?

• A) Soluble
• B) Insoluble
• C) Slightly soluble
• D) Sparingly soluble

Due to the addition of solutes, freezing point of a solution tends to ________?

• A) decrease
• B) elevated
• C) zero
• D) increase

Freezing point depression is a _________ property observed in solutions that results from the introduction of solute molecules to a solvent

• A) Anlytical
• B) Chemical
• C) Electrical
• D) Colligative

In which direction does water flow in osmosis?

• A) Towards the area of higher solute concentration
• B) Towards the area of lower solute concentration
• C) Water flow is random
• D) Water doesn't flow in osmosis

The interactions between the solute particles and the solvent molecules is called

• A) solvation
• B) solution
• C) solubility
• D) ionic bonding

Energy involved in ionic solution formation,Hydrating the anion is ___________?

• A) endothermic process
• B) exothermic process
• C) none of these
• D) Both exothermic & endothermic process

What does the slope of the linear plot of ln[A] versus time represent in a first-order reaction?

• A) Rate constant (k)
• B) Final concentration
• C) Half-life
• D) Initial concentration

A solution of water and sugar is called __________?

• A) syrup
• B) saline
• C) none of these
• D) brine

An electrolyte solution is a solution that generally contains ions, atoms or molecules that have lost or gained electrons, and is __________?

• A) low viscosity
• B) high density
• C) electrically charged
• D) electrically conductive