13 - Nitric Acid and Sulfuric Acid Salts

a. Nitric acid (HNO₃)

Also known as Aqua fortis.

a. Nitric acid (HNO₃)
b. Sodium nitrite (NaNO₂)
c. Sodium nitrate (NaNO₃)
d. Potassium nitrate (KNO₃)

a. Vasodilator

Sodium nitrite (NaNO₂) is a _____

a. Vasodilator

b. Vasoconstrictor

c. Stimulant

d. Laxative

b. Sodium nitrite (NaNO₂)

Vasodilator which is used for meat/fish curing as preservative, flavor production, color development.

a. Nitric acid (HNO₃)
b. Sodium nitrite (NaNO₂)
c. Sodium nitrate (NaNO₃)
d. Potassium nitrate (KNO₃)

b. Sodium nitrite (NaNO₂)

Carcinogenic as it can form nitrosamines.

a. Nitric acid (HNO₃)
b. Sodium nitrite (NaNO₂)
c. Sodium nitrate (NaNO₃)
d. Potassium nitrate (KNO₃)

c. Sodium nitrate (NaNO₃)

Also kown as Chile Salt Peter

a. Nitric acid (HNO₃)
b. Sodium nitrite (NaNO₂)
c. Sodium nitrate (NaNO₃)
d. Potassium nitrate (KNO₃)

c. Sodium nitrate (NaNO₃)

Used as meat preservative

a. Nitric acid (HNO₃)
b. Sodium nitrite (NaNO₂)
c. Sodium nitrate (NaNO₃)
d. Potassium nitrate (KNO₃)

c. Sodium nitrate (NaNO₃)

Used in explosive manufacture

a. Nitric acid (HNO₃)
b. Sodium nitrite (NaNO₂)
c. Sodium nitrate (NaNO₃)
d. Potassium nitrate (KNO₃)

d. Potassium nitrate (KNO₃)

Prunelle or Salitre

a. Nitric acid (HNO₃)
b. Sodium nitrite (NaNO₂)
c. Sodium nitrate (NaNO₃)
d. Potassium nitrate (KNO₃)

d. Potassium nitrate (KNO₃)

Also known as Salt Peter which is used as meat preservative, dentin desensitizer.

a. Nitric acid (HNO₃)
b. Sodium nitrite (NaNO₂)
c. Sodium nitrate (NaNO₃)
d. Potassium nitrate (KNO₃)

d. Potassium nitrate (KNO₃)

Used as meat preservative, dentin desensitizer.

a. Nitric acid (HNO₃)
b. Sodium nitrite (NaNO₂)
c. Sodium nitrate (NaNO₃)
d. Potassium nitrate (KNO₃)

a. Silver nitrate (AgNO₃)

Also know as:

• Lapiz infernulariz (caustic pencil)

a. Silver nitrate (AgNO₃)
b. Silver ammonium nitrate
c. Bismuth subnitrate (Bi(OH)₂NO₃)
d. Potassium nitrate (KNO₃)

a. Silver nitrate (AgNO₃)

Also known as:

• Lunar caustic

• Indelible ink

a. Silver nitrate (AgNO₃)
b. Silver ammonium nitrate
c. Bismuth subnitrate (Bi(OH)₂NO₃)
d. Potassium nitrate (KNO₃)
d. Potassium nitrate (KNO₃)

a. Silver nitrate (AgNO₃)

Water soluble Ag salt which is used for treatment of warts.

a. Silver nitrate (AgNO₃)
b. Silver ammonium nitrate
c. Bismuth subnitrate (Bi(OH)₂NO₃)
d. Potassium nitrate (KNO₃)

a. Silver nitrate 0.5%

Wet dressing for 3rd degree burns

a. Silver nitrate 0.5%

b. Silver nitrate 1%

c. Silver nitrite 1%

d. Silver nitrite 1%

b. Silver nitrate 1%

Ophthalmic solution for prophylaxis of gonorrheal ophthalmia neonatorum (can cause newborn blindness)

a. Silver nitrate 0.5%

b. Silver nitrate 1%

c. Silver nitrite 1%

d. Silver nitrite 1%

c. Erythromycin drops

Silver nitrate is not used for prophylaxis of gonorrhea in infants anymore. What is the newer agent now being used?

a. Penicillin drops

b. Clindamycin drops

c. Erythromycin drops

d. Cephalexin drops

b. Silver ammonium nitrate

Also known as Ammoniacal silver nitrate

a. Silver nitrate, AgNO3

b. Silver ammonium nitrate

c. Bismuth subnitrate, Bi(OH)2NO3

d. Potassium nitrate, KNO3

b. Silver ammonium nitrate

Howe's solution

a. Silver nitrate, AgNO3

b. Silver ammonium nitrate

c. Bismuth subnitrate, Bi(OH)2NO3

d. Potassium nitrate, KNO3

b. Silver ammonium nitrate

Also known as the Tollen's reagent which is a dental protective and desensitizing agent.

a. Silver nitrate, AgNO3

b. Silver ammonium nitrate

c. Bismuth subnitrate, Bi(OH)2NO3

d. Potassium nitrate, KNO3

c. Tollen's / Silver Mirror Test

Test for reducing substance

• Example: aldehydes → 1° Alcohol)

a. Benedict's Test
b. Fehling's Test
c. Tollen's / Silver Mirror Test
d. Iodoform Test

b. Aldehydes and Ketones

Aldehydes and ketones and reduced to primary alcohol.

The formation of a dark grey precipitate or silver mirror on the bottom and sides of the test tube indicates a positive result in Tollen's test, which means that the given sample contains

a. Alcohol

b. Aldehydes and ketones

c. Carboxylic acid

d. Ester and alcohol

b. Bismuth subnitrate (Bi(OH)₂NO₃)

Antacid (H. pylori induced ulcer), astringent, antiseptic

a. Silver nitrate (AgNO₃)
b. Bismuth subnitrate (Bi(OH)₂NO₃)
c. Potassium nitrate (KNO₃)
d. Sodium nitrate (NaNO₃)

d. All of the above

• Antacid (H. pylori induced ulcer)

• Astringent

• Antiseptic

Bismuth subnitrate (Bi(OH)₂NO₃) is used as:
a. Antacid (H. pylori induced ulcer)

b. Astringent

c. Antiseptic

d. All of the above

a. Sulfuric acid, H2SO4

Also known as Oil of vitriol

a. Sulfuric acid, H2SO4

b. Sodium metabisulfite, Na2S2O5

c. Potassium metabisulfite, K2S2O5

d. Sodium sulfate, Na2SO4

b. Sodium metabisulfite (Na₂S₂O₅)

📌Fumigant will revert back Na metabisulfite to Na bisulfite.

Formed by crystallization on atmospheric SO2.

a. Sulfuric acid (H₂SO₄)
b. Sodium metabisulfite (Na₂S₂O₅)
c. Potassium metabisulfite (K₂S₂O₅)
d. Sodium sulfate (Na₂SO₄)

b. Sodium metabisulfite (Na₂S₂O₅)

Bisulfite of commerce, same properties as true bisulfite.

a. Sulfuric acid (H₂SO₄)
b. Sodium metabisulfite (Na₂S₂O₅)
c. Potassium metabisulfite (K₂S₂O₅)
d. Sodium sulfate (Na₂SO₄)

b. Sodium metabisulfite (Na₂S₂O₅)

Those with meta-, thio-, and other similar prefixes are commonly reducing agents.

Reducing agent which is a water soluble antioxidant.

a. Sulfuric acid (H₂SO₄)
b. Sodium metabisulfite (Na₂S₂O₅)
c. Potassium metabisulfite (K₂S₂O₅)
d. Sodium sulfate (Na₂SO₄)

c. Both a and b

• Drugs with phenol/catechol nucleus (phenylephrine HCl, epinephrine HCl)

• Vitamin C (0.1%)

Sodium metabisulfite can be used as antioxidant in:

a. Drugs with phenol/catechol nucleus (phenylephrine HCl, epinephrine HCl)

b. Vitamin C (0.1%)

c. Both a and b

d. None

c. Sodium metabisulfite (Na₂S₂O₅)

An antimicrobial property that serves as a preservative and is used in food fermentation is exhibited by which compound?

a. Sodium benzoate (C₇H₅NaO₂)
b. Sodium propionate (C₃H₅NaO₂)
c. Sodium metabisulfite (Na₂S₂O₅)
d. Sodium nitrite (NaNO₂)

c. Both a and b

• Preservative

• Food fermentation

Which of the following are antimicrobial properties of Sodium metabisulfite (Na₂S₂O₅)?

a. Preservative
b. Food fermentation
c. Both a and b
d. Neither a nor b

a. True

Potassium metabisulfite (K₂S₂O₅) is an antioxidant.

a. True

b. False

d. Sodium sulfate (Na₂SO)

Known as the Glauber's salt which is used as saline laxative or cathartic.

a. Sulfuric acid (H₂SO₄)
b. Sodium metabisulfite (Na₂S₂O₅)
c. Potassium metabisulfite (K₂S₂O₅)
d. Sodium sulfate (Na₂SO₄)

d. Sodium sulfate (Na₂SO)

Used as saline laxative or cathartic.

a. Sulfuric acid (H₂SO₄)
b. Sodium metabisulfite (Na₂S₂O₅)
c. Potassium metabisulfite (K₂S₂O₅)
d. Sodium sulfate (Na₂SO₄)

b. Laxative or cathartic

Sodium sulfate (Na₂SO₄) is used as _____

a. Anticoagulant
b. Laxative or cathartic
c. Antiseptic
d. Expectorant

a. Magnesium sulfate (MgSO₄)

Known as the Epsom salt.

a. Magnesium sulfate (MgSO₄)
b. Calcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O)
c. Calcium sulfate dihydrate (CaSO₄ • 2 H₂O)
d. Zinc sulfate (ZnSO₄)

a. Magnesium sulfate (MgSO₄)

Used as a per-oral cathartic, and anticonvulsant.

a. Magnesium sulfate (MgSO₄)
b. Calcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O)
c. Calcium sulfate dihydrate (CaSO₄ • 2 H₂O)
d. Zinc sulfate (ZnSO₄)

c. Both a and b

• Cathartic (PO)

• Anticonvulsant (IM)

Magnesium sulfate (MgSO₄) is used as _____

a. Cathartic (PO)
b. Anticonvulsant (IM)
c. Both a and b
d. Neither a nor b

f. All of the above

• Hypertension (HTN)

• Proteinuria

• Edema

Pre-eclampsia triad include:

a. Hypertension (HTN)

b. Proteinuria

c. Edema

d. a and b

e. b and c

f. All of the above

a. Seizure

Eclampsia is when the hypertension, edema, and proteinuria are manifested with:

a. Seizure

b. Sever fever

c. High blood sugar

d. Myopathy

b. Pre-eclampsia

Hypertension + edema + proteinuria → _______

a. Eclampsia

b. Pre-eclampsia

a. Eclampsia

Hypertension + edema + proteinuria + Seizure → _______

a. Eclampsia

b. Pre-eclampsia

b. Calcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O)

Known as the Plaster of Paris

a. Magnesium sulfate (MgSO₄)
b. Calcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O)
c. Calcium sulfate dihydrate (CaSO₄ • 2 H₂O)
d. Zinc sulfate (ZnSO₄)

b. Calcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O)

Used as surgical cast.

a. Magnesium sulfate (MgSO₄)
b. Calcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O)
c. Calcium sulfate dihydrate (CaSO₄ • 2 H₂O)
d. Zinc sulfate (ZnSO₄)

a. Surgical cast

alcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O) is used as a ______

a. Surgical cast
b. Dentifrice
c. Rodenticide
d. Antidote for magnesium toxicity

c. Calcium sulfate dihydrate (CaSO₄ • 2 H₂O)

Known as the Gypsum or Terra alba

a. Magnesium sulfate (MgSO₄)
b. Calcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O)
c. Calcium sulfate dihydrate (CaSO₄ • 2 H₂O)
d. Zinc sulfate (ZnSO₄)

c. Calcium sulfate dihydrate (CaSO₄ • 2 H₂O)

Used as dentifrice and rodenticide.

a. Magnesium sulfate (MgSO₄)
b. Calcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O)
c. Calcium sulfate dihydrate (CaSO₄ • 2 H₂O)
d. Zinc sulfate (ZnSO₄)

a. Dentifrice and rodenticide

Calcium sulfate dihydrate (CaSO₄ • 2 H₂O) is used as _____

a. Dentifrice and rodenticide
b. Plaster and cast material
c. Antidote for barium poisoning
d. Fertilizer and disinfectant

d. Zinc sulfate (ZnSO₄)

Also known as White vitriol

a. Magnesium sulfate (MgSO₄)
b. Calcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O)
c. Calcium sulfate dihydrate (CaSO₄ • 2 H₂O)
d. Zinc sulfate (ZnSO₄)

d. Zinc sulfate (ZnSO₄)

Only FDA approved ophthalmic astringent in 0.25% solution.

a. Magnesium sulfate (MgSO₄)
b. Calcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O)
c. Calcium sulfate dihydrate (CaSO₄ • 2 H₂O)
d. Zinc sulfate (ZnSO₄)

d. Zinc sulfate (ZnSO₄)

White lotion = Sulfureted potash + Zinc sulfate (ZnSO₄)

Component of white lotion together with sulfurated potash.

a. Magnesium sulfate (MgSO₄)
b. Calcium sulfate hemihydrate (CaSO₄ • 1/2 H₂O)
c. Calcium sulfate dihydrate (CaSO₄ • 2 H₂O)
d. Zinc sulfate (ZnSO₄)

a. Cadmium sulfate (CdSO₄)

Ophthalmic antiseptic

a. Cadmium sulfate (CdSO₄)
b. Cupric sulfate (CuSO₄)
c. Ferrous ammonium sulfate
d. Ferrous sulfate

b. Cupric sulfate (CuSO₄)

Also known as:

• Blue Stone

• Roman Stone

a. Cadmium sulfate (CdSO₄)
b. Cupric sulfate (CuSO₄)
c. Ferrous ammonium sulfate
d. Ferrous sulfate

b. Cupric sulfate (CuSO₄)

Also known as Salzburg vitriol

a. Cadmium sulfate (CdSO₄)
b. Cupric sulfate (CuSO₄)
c. Ferrous ammonium sulfate
d. Ferrous sulfate

b. Cupric sulfate (CuSO₄)

Enhances Fe utilization.

a. Cadmium sulfate (CdSO₄)
b. Cupric sulfate (CuSO₄)
c. Ferrous ammonium sulfate
d. Ferrous sulfate

b. Cupric sulfate (CuSO₄)

Component of Barfoed's, Benedict's, and Fehling's solution which are tests for reducing substance which positive result of brick red ppt.

a. Cadmium sulfate (CdSO₄)
b. Cupric sulfate (CuSO₄)
c. Ferrous ammonium sulfate
d. Ferrous sulfate

a. Barfoed's, Benedict's, and Fehling's Solution

Tests for reducing substance which positive result of brick red ppt.

a. Barfoed's, Benedict's, and Fehling's Solution
b. Biuret, Ninhydrin, and Xanthoproteic tests
c. Molisch's, Seliwanoff's, and Bial's tests
d. Iodine, Sudan III, and Liebermann-Burchard tests

a. Brick red precipitate

Barfoed's, Benedict's, and Fehling's Solution are tests for reducing substance with a positive result of ______

a. Brick red precipitate
b. Blue-violet complex
c. Yellow precipitate
d. Green coloration

c. Bordeaux Mixture

CuSO₄ + CaO → _____

a. Benedict's Solution
b. Fehling's Solution
c. Bordeaux Mixture
d. Barfoed's Reagent

c. Bordeaux Mixture (CuSO₄ + CaO)

_____ is used as algicide and fungicide in swimming pool.

a. Benedict's Solution
b. Fehling's Solution
c. Bordeaux Mixture
d. Barfoed's Reagent

d. Ferrous sulfate (FeSO₄)

Also known as Green vitriol

a. Cadmium sulfate (CdSO₄)
b. Cupric sulfate (CuSO₄)
c. Ferrous ammonium sulfate
d. Ferrous sulfate (FeSO₄)

d. Ferrous sulfate (FeSO₄)

Most economical and most satisfactory form used as hematinic but has constipating side effect.

a. Cadmium sulfate (CdSO₄)
b. Cupric sulfate (CuSO₄)
c. Ferrous ammonium sulfate
d. Ferrous sulfate (FeSO₄)

b. Constipation

Ferrous sulfate (FeSO₄) is the most economical and satisfactory form used as a hematinic but has _______ as a side effect.

a. Diarrhea
b. Constipation
c. Nausea and vomiting
d. Black tongue discoloration

c. Ferrous ammonium sulfate

Also known as Mohr salt

a. Cadmium sulfate (CdSO₄)
b. Cupric sulfate (CuSO₄)
c. Ferrous ammonium sulfate
d. Ferrous sulfate (FeSO₄)

a. Ferric subsulfate solution

Also known as Monsel's solution used as styptic (hemostatic agent).

a. Ferric subsulfate solution
b. Barium sulfate (BaSO₄)
c. Nickel sulfate (NiSO₄)
d. Aluminum potassium sulfate (AlK(SO₄)₂ • 12 H₂O)

a. Ferric subsulfate solution

Used as styptic (hemostatic agent).

a. Ferric subsulfate solution
b. Barium sulfate (BaSO₄)
c. Nickel sulfate (NiSO₄)
d. Aluminum potassium sulfate (AlK(SO₄)₂ • 12 H₂O)

b. Styptic (hemostatic agent)

Ferric subsulfate solution is used as _____

a. Emetic
b. Styptic (hemostatic agent)
c. Antidote for cyanide poisoning
d. Radiopaque contrast medium

b. Barium sulfate (BaSO₄)

Also known as Barium meal

a. Ferric subsulfate solution
b. Barium sulfate (BaSO₄)
c. Nickel sulfate (NiSO₄)
d. Aluminum potassium sulfate (AlK(SO₄)₂ • 12 H₂O)

b. Barium sulfate (BaSO₄)

Radioopaque for GIT imaging which doesn't dissociate but with constipating side effect.

a. Ferric subsulfate solution
b. Barium sulfate (BaSO₄)
c. Nickel sulfate (NiSO₄)
d. Aluminum potassium sulfate (AlK(SO₄)₂ • 12 H₂O)

c. Nickel sulfate (NiSO₄)

Used a:

• Tonic

• Parasiticide.

a. Ferric subsulfate solution
b. Barium sulfate (BaSO₄)
c. Nickel sulfate (NiSO₄)
d. Aluminum potassium sulfate (AlK(SO₄)₂ • 12 H₂O)

c. Both a and b

• Tonic

• Parasiticide

Nickel sulfate (NiSO₄) can be used as:
a. Tonic

b. Parasiticide

c. Both a and b

d. Aluminum potassium sulfate (AlK(SO₄)₂ • 12 H₂O

Also known as:

• Alum

• Tawas.

a. Ferric subsulfate solution
b. Barium sulfate (BaSO₄)
c. Nickel sulfate (NiSO₄)
d. Aluminum potassium sulfate (AlK(SO₄)₂ • 12 H₂O)

e. None

📌Uses of Alum include:

• Astringent

• Antiperspirant

• Deodorant

• Styptic (Antihemorrhagic)

Used of Alum/Tawas except:

a. Astringent

b. Antiperspirant

c. Deodorant

d. Styptic

e. None

a. Sodium thiosulfate (Na₂S₂O₃) / Sodium hyposulfite (Na₂S₂O₃)

Also known as:

• Photographer's hypochlor

• Hypochlor

a. Sodium thiosulfate (Na₂S₂O₃)
b. Zinc sulfide (ZnS)
c. Selenium sulfide (SeS₂)
d. Lead sulfide (PbS)

a. Sodium thiosulfate (Na₂S₂O₃) / Sodium hyposulfite (Na₂S₂O₃)

Reducing agent used in iodometry.

a. Sodium thiosulfate (Na₂S₂O₃)
b. Zinc sulfide (ZnS)
c. Selenium sulfide (SeS₂)
d. Lead sulfide (PbS)

a. Sodium thiosulfate (Na₂S₂O₃) / Sodium hyposulfite (Na₂S₂O₃)

Its misnomer is Sodium hyposulfite (Na₂S₂O₃)

a. Sodium thiosulfate (Na₂S₂O₃)
b. Zinc sulfide (ZnS)
c. Selenium sulfide (SeS₂)
d. Lead sulfide (PbS)

a. Acids

Decompose thiosulfate to sulfur.

a. Acids

b. Bases

b. Bases

Decompose thiosulfate to sulfate.

a. Acids

b. Bases

a. Sodium thiosulfate (Na₂S₂O₃) / Sodium hyposulfite (Na₂S₂O₃)

Used in Cl- residue removal from aqueous solution.

a. Sodium thiosulfate (Na₂S₂O₃)
b. Zinc sulfide (ZnS)
c. Selenium sulfide (SeS₂)
d. Lead sulfide (PbS)

a. Sodium thiosulfate (Na₂S₂O₃) / Sodium hyposulfite (Na₂S₂O₃)

Treatment of CN poisoning with Sodium nitrate (NaNO₃)

a. Sodium thiosulfate (Na₂S₂O₃)
b. Zinc sulfide (ZnS)
c. Selenium sulfide (SeS₂)
d. Lead sulfide (PbS)

b. Zinc sulfide (ZnS)

Only white sulfide which is a topical protectant, antiseptic, and parasiticide.

a. Sodium thiosulfate (Na₂S₂O₃)
b. Zinc sulfide (ZnS)
c. Selenium sulfide (SeS₂)
d. Lead sulfide (PbS)

d. All of the above

• Topical protectant

• Antiseptic

• Parasiticide

Zinc sulfide (ZnS) is the only white sulfide which is used as:
a. Topical protectant

b. Antiseptic

c. Parasiticide

d. All of the above

b. Zinc sulfide (ZnS

Component of Lithopone.

a. Sodium thiosulfate (Na₂S₂O₃)
b. Zinc sulfide (ZnS)
c. Selenium sulfide (SeS₂)
d. Lead sulfide (PbS)

a. Lithopone

30% BaS + 70% ZnS

a. Lithopone
b. Titanium dioxide
c. Zinc oxide
d. Barium sulfate

a. BaS + ZnS (70:30)

Lithopone is composed of:

a. BaS + ZnS (70:30)

b. PbS + ZnS (70:30)

c. BaS + CdS (70:30)

d. PbS + CdS (70:30)

c. Manganese sulfide, MnS

Also known as:

• Pink Sulfide

• Salmon sulfide.

a. Sodium thiosulfate, Na2S2O3

b. Zinc sulfide, ZnS

c. Manganese sulfide, MnS

d. Selenium sulfide, SeS2

e. Lead sulfide, PbS

f. Cadmium sulfide (CdS)

Only yellow sulfide which is antiseborrheic.

a. Sodium thiosulfate (Na₂S₂O₃)
b. Zinc sulfide (ZnS)
c. Manganese sulfide (MnS)
d. Selenium sulfide (SeS₂)
e. Lead sulfide (PbS)
f. Cadmium sulfide (CdS)

a. Antiseborrheic

Cadmium sulfide (CdS) is the only yellow sulfide which is _____

a. Antiseborrheic
b. Antifungal
c. Antibacterial
d. Antipruritic

f. Cadmium sulfide, CdS

Capsebon®

a. Sodium thiosulfate, Na2S2O3

b. Zinc sulfide, ZnS

c. Manganese sulfide, MnS

d. Selenium sulfide, SeS2

e. Lead sulfide, PbS

f. Cadmium sulfide, CdS

d. Selenium sulfide (SeS₂)

Selsun Blue®

a. Sodium thiosulfate (Na₂S₂O₃)
b. Zinc sulfide (ZnS)
c. Manganese sulfide (MnS)
d. Selenium sulfide (SeS₂)
e. Lead sulfide (PbS)

d. Selenium sulfide (SeS₂)

2.5% suspension is used for seborrheic dermatitis.

a. Sodium thiosulfate (Na₂S₂O₃)
b. Zinc sulfide (ZnS)
c. Manganese sulfide (MnS)
d. Selenium sulfide (SeS₂)
e. Lead sulfide (PbS)

a. Seborrheic dermatitis

Selenium sulfide (SeS₂) is a 2.5% suspension used for _____

a. Seborrheic dermatitis
b. Acne vulgaris
c. Psoriasis
d. Tinea capitis

e. Lead sulfide, PbS

Also known as Black sulfide from Galena (most common ore).

a. Sodium thiosulfate, Na2S2O3

b. Zinc sulfide, ZnS

c. Manganese sulfide, MnS

d. Selenium sulfide, SeS2

e. Lead sulfide, PbS

a. Galena (PbS)

Also known as Black sulfide from _____ the most common ore.

a. Galena (PbS)
b. Sphalerite (ZnS)
c. Cinnabar (HgS)
d. Pyrite (FeS₂)

a. Galena (PbS)

Most common Ore

a. Galena (PbS)
b. Sphalerite (ZnS)
c. Cinnabar (HgS)
d. Pyrite (FeS₂)