GENERAL CHEMISTRY IJNIP

C. Chromatography

Which among the processes of separating components of mixtures makes use of differences in solvent affinity?

B. Chemical change

When water undergoes electrolysis forming hydrogen and oxygen molecules, which of the following phrases BEST describes this occurrence?

C. Deposition

Formation of dry ice.

C. AgI

It forms a yellow, curdy precipitate that is readily soluble in

potassium cyanide and in sodium thiosulphate solutions,

very slightly soluble in concentrated ammonia solution,

and insoluble in dilute nitric acid.

Gluconic acid

A weak oxidizing agent oxidizes glucose into

Decomposition reaction

Which of the following refers to a kind of chemical reaction

whereby a substance splits into a simpler substance?

Chlorine

What is liberated when potassium permanganate is reacted with hydrochloric acid?

HF + Mg(OH)2

Reaction between a weak acid and a strong base.

Ammonia

The following will react with water forming an acid solution except:

Na2C2O4

The following are oxidizing agents, except:

Reducing agent

An agent that loses one or more electrons in a redox reaction:

6

Determine the oxidation of chromium in potassium

chromate with the chemical formula: K2CrO4

Law of mass action

The rate of the reaction is proportional to the product of the concentrate of the reactants to the power of its coefficient in a balanced equation.

John Dalton

Billiard ball model

Niels Bohr

Planetary model

Erwin schrodinger

Quantum mechanical Model

Mass number

The sum of the number of protons and neutrons of an atom:

Isotopes

Elements having the same number of protons

Magnetic quantum number

It gives the spatial orientation of the electron cloud with

respect to the three areas in space:

Principal quantum number

This is used to describe the approximate measure of the size

of the electron cloud.

Azimuthal quantum number

This quantum number is related to the shape of atomic

orbitals.

An atom cannot have 2 electrons in the same energy

level or orbital that have the same set of quantum

numbers

Which of the following is TRUE regarding Pauli’s Exclusion

Principle?

Heisenberg Uncertainty Principle

Principle which states that it is impossible to accurately

determine simultaneously the position and motion of an

electron.

Perchlorate ion

Name this polyatomic anion: ClO4

Na

Major cation of the extracellular fluid

K

What is the predominant ion in the intracellular fluid?

Sodium

What element predominates in the plasma and interstitial

fluids?

Phosphate

What is the principal anion in the intracellular fluid

compartment?

Manganese

The major physiological ions include the following except

Iodine in form of iodide

Which of the following elements is NOT found as a

component of extracellular fluids in humans?

I, II, IV

Replacement therapy is needed when there is:

I. Heavy loss of water III. a fracture

II. Prolonged fever IV. Diarrhea

Insoluble chloride group

n the cation analysis, group I ions are often called:

Silver nitrate

Chlorides may be precipitated by:

Mercurous

It forms white precipitate with HCl but blackens upon

addition of ammonium hydroxide.

Silver

The ion that gives a white precipitate with HCl which is

soluble in excess ammonium hydroxide but reprecipitated

upon addition of nitric acid:

Moseley

The modern periodic table of elements was prepared by:

H

Which of the following does not belong to the period 2 in the

periodic table?

II, III, IV

Which of the following statements best describe the

Periodic Table?

I. Helium is the first element in Group I-A

II. Non-metals occupy the upper right area of the periodic

table.

III. Metals are located in the left are of the periodic table.

IV. Diagonally related elements are known as “bridge

elements.”

B

The following are non-metals except:

Sulfur

The following elements form basic hydrides, EXCEPT:

Lithium

Lightest of all metal

Lithium

Which of the alkali metals melts above 100ºC?

Group I-A

Which group is referred to as “alkali metals”?

VI-A

Which of the following is referred to as the chalcogens?

Group VIIA

Also known as the salt forming group

F, Br

Which elements belong to Group VII-A?

Group I-B

Which group is referred to as “coinage” metal?

I, II, IV

Which of the following elements are referred to as volatile

metals?

I. Cadmium III. Beryllium

II. Mercury IV. Zinc

I, III, IV

Which of the following elements are referred to as the triad

of the Group VIII?

I. Co III. Ni

II. Mn IV. Fe

I, III, IV

Which statements best describe the properties of elements

in the periodic table, from the upper right corner, going

down and then to the left?

I. Elements increase in metallic character

II. Elements become more electronegative

III. Elements become more basic

IV. Elements become less electronegative

Atomic size

In the periodic table, when going across a period from right

to left and top to bottom of a group, which of the following

properties of elements increases?

F

MOST electronegative element?

Cl

Which of the following elements is the most reactive?

F > Br > Ca > Na

Arrange in decreasing electronegativity: F (Z = 9), Br (Z = 35),

Ca (Z = 20), Na (Z = 11)

Francium

Which atom is the most metallic and has the largest atomic

radius?

I

Which of the following elements is the most metallic?

Allotropic

Elements that exist in two or more crystalline forms are said

to be __________.

Black phosphorus

This allotrope of Phosphorus is made by heating

phosphorus at 200 degree celsius under a pressure of

1,200atm?

I, II, III, IV

Polymorphs differ in their:

I. Bioavailability III. Melting Point

II. Stability IV. Solubility

II, III

Which of the following elements are amphoteric?

I. Beryllium III. Aluminum

II. Zinc IV. Calcium

valence of the atoms

All of the following physicochemical constants may be useful

to predict the solubility of a compound EXCEPT __________.

Miscible with alcohol

Which is NOT true for Mineral Oil USP?

Acacia

Which of the following is NOT soluble or miscible in alcohol

USP?

Ethyl alcohol

Petrolatum USP is NOT soluble in ________.

Mineral oil

Which of the following is not a solvent for polyethylene

glycol?

Concentration

Weight of solute in a given quantity of solvent is referred to

as _______

Normal solution

Which of the following is the concentration of a solution that

contains one gram equivalent weight of solute in a liter of

solution?

Protons

When acids are in solution, which of the following is

released?

Boric acid

Which one of the following acid will undergo the least

amount of ionization in water?

Tertiary amine

Will form a salt with acid

Autoprotolytic

Transfer of proton from one molecule to another identical

molecule

Phosphoric acid

Which of the following is an example of triprotic acid?

C2H2NH2 + HCl

Reaction between a strong acid and a weak base.

HF + Mg(OH)2

Reaction between a weak acid and a strong base.

pH

The negative log of the concentration of hydronium ions in a

solution.