7A. Halogens

d. Halogens

Group 7A aka

a. Pnictogens
b. Icosagens
c. Chalcogens
d. Halogens

c. Fluorine

Pale yellow gas.

a. Chlorine
b. Bromine
c. Fluorine
d. Iodine

b. Fluoride

Fluoride used to combat dental caries.

a. Chloride
b. Fluoride
c. Bromide
d. Iodide

b. Freons

Gases used as aerosol propellants.

a. Noble gases
b. Freons
c. Halons
d. Chloramines

d. Chlorofluorocarbons (CFCs)

Original chemical class of Freons.

a. Hydrofluorocarbons (HFCs)
b. Perfluorocarbons (PFCs)
c. Hydrochlorofluorocarbons (HCFCs)
d. Chlorofluorocarbons (CFCs)

b. Ozone layer depletion

Environmental effect of chlorofluorocarbons (CFCs).

a. Acid rain formation
b. Ozone layer depletion
c. Greenhouse gas neutralization
d. Water pollution

d. Montreal Protocol

International agreement that led to the discontinuation of CFC use.

a. Kyoto Protocol
b. Stockholm Convention
c. Basel Convention
d. Montreal Protocol

b. Chlorine

Greenish gas.

a. Bromine
b. Chlorine
c. Fluorine
d. Iodine

c. Chlorine

Commonly used water disinfectant in municipal sewage systems.

a. Fluorine
b. Bromine
c. Chlorine
d. Iodine

c. Sodium hypochlorite

Also known as bleach.

a. Sodium chloride
b. Sodium chlorate
c. Sodium hypochlorite
d. Sodium chlorite

c. Dakin's solution

Sodium hypochlorite solution with a concentration of 0.4–0.5%.

a. Lugol's solution
b. Labarraque's solution
c. Dakin's solution
d. Donovan's solution

b. Labarraque's solution

Sodium hypochlorite solution with a concentration of 4–6%.

a. Dakin's solution
b. Labarraque's solution
c. Fowler's solution
d. Lugol's solution

c. Disinfectant and decolorizing agent

Primary use of sodium hypochlorite.

a. Antacid
b. Plasma expander
c. Disinfectant and decolorizing agent
d. Antifungal agent

c. Hydrochloric acid

Also known as muriatic acid.

a. Nitric acid
b. Sulfuric acid
c. Hydrochloric acid
d. Acetic acid

a. Cleaning agent

Common use of hydrochloric acid.

a. Cleaning agent
b. Antiseptic
c. Oxidizing agent
d. Antacid

d. Coagulative necrosis

Type of tissue injury produced by hydrochloric acid.

a. Liquefactive necrosis
b. Caseous necrosis
c. Fat necrosis
d. Coagulative necrosis

b. Bromine

Reddish-brown liquid.

a. Chlorine
b. Bromine
c. Iodine
d. Fluorine

c. CNS depressant

Pharmacologic effect of bromides.

a. CNS stimulant
b. Cardiac stimulant
c. CNS depressant
d. Local anesthetic

a. Testing alkenes and tannins

Use of bromine.

a. Testing alkenes and tannins
b. Water fluoridation
c. Plasma expansion
d. Film coating tablets

c. Iodine

Violet solid (pellet).

a. Bromine
b. Chlorine
c. Iodine
d. Fluorine

c. Iodine

Halogen found in thyroid hormones.

a. Bromine
b. Fluorine
c. Iodine
d. Chlorine

b. Goiter

Deficiency of iodine.

a. Cretinism
b. Goiter
c. Beriberi
d. Pellagra

a. Iodized salt

Treatment for iodine deficiency according to the notes.

a. Iodized salt
b. Lugol's solution
c. Potassium iodide injection
d. Tincture of iodine

d. Iodism

Excess iodine intake.

a. Goiter
b. Fluorosis
c. Bromism
d. Iodism

b. Starch

Treatment for iodism.

a. Activated charcoal
b. Starch
c. Prussian blue
d. Sodium bicarbonate

b. Lugol's solution

Strong iodine solution.

a. Tincture of iodine
b. Lugol's solution
c. Dakin's solution
d. Labarraque's solution

d. Astatine

Rarest naturally occurring element.

a. Francium
b. Tellurium
c. Polonium
d. Astatine

a. <1 g

Approximate amount of Astatine in the Earth's crust.

a. <1 g
b. <1 mg
c. <10 g
d. <100 g

a. Tennessine

Synthetic member of the halogen group.

a. Tennessine
b. Astatine
c. Iodine
d. Bromine