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Questions and Answers
Which of the following compounds turns purple in light when reacted with dilute hydrochloric acid?
Which of the following compounds turns purple in light when reacted with dilute hydrochloric acid?
What is the color of the precipitate formed when lead nitrate reacts with potassium chromate?
What is the color of the precipitate formed when lead nitrate reacts with potassium chromate?
What precipitate is formed when copper sulfate reacts with hydrogen sulfide in the presence of dilute hydrochloric acid?
What precipitate is formed when copper sulfate reacts with hydrogen sulfide in the presence of dilute hydrochloric acid?
What is the color of the precipitate formed when tin sulfate reacts with hydrogen sulfide in the presence of dilute hydrochloric acid?
What is the color of the precipitate formed when tin sulfate reacts with hydrogen sulfide in the presence of dilute hydrochloric acid?
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What happens to the white precipitate of mercury hydroxide when an excess of sodium hydroxide is added?
What happens to the white precipitate of mercury hydroxide when an excess of sodium hydroxide is added?
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What is the color of the precipitate formed when ferric chloride reacts with ammonium hydroxide?
What is the color of the precipitate formed when ferric chloride reacts with ammonium hydroxide?
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What is the color of the precipitate formed when aluminum chloride reacts with ammonium hydroxide?
What is the color of the precipitate formed when aluminum chloride reacts with ammonium hydroxide?
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Which of the following reagents is used to confirm the presence of iron (II) ions?
Which of the following reagents is used to confirm the presence of iron (II) ions?
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What is the color of the precipitate formed when zinc chloride reacts with hydrogen sulfide in the presence of a buffer solution?
What is the color of the precipitate formed when zinc chloride reacts with hydrogen sulfide in the presence of a buffer solution?
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What is the color of the precipitate formed when manganese chloride reacts with hydrogen sulfide in the presence of a buffer solution?
What is the color of the precipitate formed when manganese chloride reacts with hydrogen sulfide in the presence of a buffer solution?
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When calcium sulfate reacts with ammonium carbonate in a buffer solution, what precipitate is formed?
When calcium sulfate reacts with ammonium carbonate in a buffer solution, what precipitate is formed?
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What is the color of the precipitate formed when barium sulfate reacts with potassium chromate?
What is the color of the precipitate formed when barium sulfate reacts with potassium chromate?
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Which of the following compounds gives a furan gas when reacted with dilute hydrochloric acid?
Which of the following compounds gives a furan gas when reacted with dilute hydrochloric acid?
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What is the color of the precipitate formed when sodium carbonate reacts with magnesium sulfate?
What is the color of the precipitate formed when sodium carbonate reacts with magnesium sulfate?
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What is the color of the precipitate formed when sodium chloride reacts with silver nitrate?
What is the color of the precipitate formed when sodium chloride reacts with silver nitrate?
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What is the color of the precipitate formed when sodium sulfate reacts with barium chloride?
What is the color of the precipitate formed when sodium sulfate reacts with barium chloride?
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Which of the following compounds forms a yellow precipitate with silver nitrate?
Which of the following compounds forms a yellow precipitate with silver nitrate?
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What happens to the furan gas produced in the reaction between sodium carbonate and dilute hydrochloric acid?
What happens to the furan gas produced in the reaction between sodium carbonate and dilute hydrochloric acid?
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Which of the following functional groups is present in formaldehyde?
Which of the following functional groups is present in formaldehyde?
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Which of the following functional groups is present in acetone?
Which of the following functional groups is present in acetone?
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Which of the following functional groups is present in methanol?
Which of the following functional groups is present in methanol?
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Which of the following functional groups is present in acetic acid?
Which of the following functional groups is present in acetic acid?
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Which of the following compounds belongs to group 1 of organic compounds based on its reaction with dilute hydrochloric acid?
Which of the following compounds belongs to group 1 of organic compounds based on its reaction with dilute hydrochloric acid?
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Which of the following compounds is an example of an aldehyde?
Which of the following compounds is an example of an aldehyde?
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Which of the following compounds is an example of a ketone?
Which of the following compounds is an example of a ketone?
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Which of the following compounds is an example of a carboxylic acid?
Which of the following compounds is an example of a carboxylic acid?
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Which of the following compounds belongs to group 4 based on its reactions with dilute hydrochloric acid?
Which of the following compounds belongs to group 4 based on its reactions with dilute hydrochloric acid?
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Which of the following compounds is an example of an aromatic hydrocarbon?
Which of the following compounds is an example of an aromatic hydrocarbon?
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Which of the following compounds is an example of a saturated hydrocarbon?
Which of the following compounds is an example of a saturated hydrocarbon?
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Which of the following compounds is an example of an alkyl halide?
Which of the following compounds is an example of an alkyl halide?
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Which of the following compounds is an example of a cyclic hydrocarbon?
Which of the following compounds is an example of a cyclic hydrocarbon?
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Which of the following compounds is an example of an aromatic ether?
Which of the following compounds is an example of an aromatic ether?
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Organic compounds that dissolve in ether are generally considered non-polar.
Organic compounds that dissolve in ether are generally considered non-polar.
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Which of the following compounds is considered a neutral compound?
Which of the following compounds is considered a neutral compound?
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Which of the following is a characteristic of organic acids?
Which of the following is a characteristic of organic acids?
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The common name for the compound with the formula CH3COOH is _____.
The common name for the compound with the formula CH3COOH is _____.
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Which compound is likely to produce a white precipitate upon reaction with calcium chloride?
Which compound is likely to produce a white precipitate upon reaction with calcium chloride?
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The reaction between formic acid and sodium hydroxide in the presence of heat is considered a neutralization reaction.
The reaction between formic acid and sodium hydroxide in the presence of heat is considered a neutralization reaction.
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The chemical formula for acetic acid is CH3COOH.
The chemical formula for acetic acid is CH3COOH.
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The reaction between a salt and sodium carbonate is typically a neutral reaction.
The reaction between a salt and sodium carbonate is typically a neutral reaction.
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Salicylic acid is considered a strong acid.
Salicylic acid is considered a strong acid.
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Study Notes
Inorganic Chemistry - Basic Reactions
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Silver Nitrate (AgNO3) and Hydrochloric Acid (HCl): AgNO3 + HCl → AgCl + HNO3. White precipitate (ppt) forms, turning purple in light.
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Lead Nitrate (Pb(NO3)2) and Hydrochloric Acid (HCl): Pb(NO3)2 + 2HCl → PbCl2 + 2HNO3. White ppt forms.
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Silver Nitrate (AgNO3) and Potassium Chromate (K2CrO4): 2AgNO3 + K2CrO4 → Ag2CrO4 + 2KNO3. Brick-red ppt forms.
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Lead Nitrate (Pb(NO3)2) and Potassium Chromate (K2CrO4): Pb(NO3)2 + K2CrO4 → PbCrO4 + 2KNO3. Canary yellow ppt forms.
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Copper Sulfate (CuSO4) and Hydrogen Sulfide (H2S) with Hydrochloric Acid (HCl): CuSO4 + H2S + 2HCl → CuS + H2SO4. Black ppt forms.
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Tin Sulfate (SnSO4) and Hydrogen Sulfide (H2S) with Hydrochloric Acid (HCl): SnSO4 + H2S + 2HCl → SnS + H2SO4. Brown ppt forms.
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Mercury Chloride (HgCl2) and Hydrogen Sulfide (H2S) with Hydrochloric Acid (HCl): HgCl2 + H2S + 2HCl → HgS + 2HCl. Black ppt forms.
Inorganic Chemistry - Confirmatory Tests
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Copper Sulfate (CuSO4) and Sodium Hydroxide (NaOH): CuSO4 + 2NaOH → Cu(OH)2 + Na2SO4. Blue ppt forms, turning black on heating.
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Tin Sulfate (SnSO4) and Sodium Hydroxide (NaOH): SnSO4 + 2NaOH → Sn(OH)2 + Na2SO4. White ppt, dissolves in excess NaOH.
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Mercury(II) Sulfate (HgSO4) and Sodium Hydroxide (NaOH): HgSO4 + 2NaOH → Hg(OH)2 + Na2SO4. Yellow ppt forms.
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Iron(II) Chloride (FeCl2) and Ammonium Hydroxide (NH4OH): FeCl2 + 2NH4OH → Fe(OH)2 ↓ + 2NH4Cl. Dirty green ppt forms.
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Iron(III) Chloride (FeCl3) and Ammonium Hydroxide (NH4OH): FeCl3 + 3NH4OH → Fe(OH)3↓ + 3NH4Cl. Reddish-brown ppt forms.
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Aluminum Chloride (AlCl3) and Ammonium Hydroxide (NH4OH): AlCl3 + 3NH4OH → Al(OH)3 ↓ + 3NH4Cl. White ppt forms.
Inorganic Chemistry - Further Reactions
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Iron(II) Chloride (FeCl2) and Potassium Hexacyanoferrate(II) (K4[Fe(CN)6]): 2FeCl2 + K4[Fe(CN)6] → Fe4[Fe(CN)6]2 + 4KCl. Light blue ppt forms.
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Iron(III) Chloride (FeCl3) and Potassium Hexacyanoferrate(II) (K4[Fe(CN)6]): 4FeCl3 + 3K4[Fe(CN)6] → Fe4[Fe(CN)6]3 + 12KCl. Dark blue ppt forms.
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Aluminum Chloride (AlCl3) and Sodium Hydroxide (NaOH): AlCl3 + 3NaOH → Al(OH)3 + 3NaCl. White ppt forms.
Additional Topics (from other pages)
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Various reactions for different groups of elements are presented
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Carbonate/Bicarbonate Reactions: Reactions with dilute HCl, Sulfuric acid, or other reagents form precipitates, release of CO2 and water
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Solubility rules: organic compounds dissolve in water or other solvents, while some do not. Solvents, reactions with bases and solutions.
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Acidity / Basicity Tests: Tests to determine if a solution is acidic or basic, and the result produced in each case.
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Organic Acid and Salt Reactions: Reaction of organic acids with carbonates, bases or other reagents are presented.
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Group Testing: Reactions specific for different groups (e.g. Group 1, Group 4) in chemistry are listed
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Description
Test your knowledge on the basic reactions of inorganic compounds including the formation of precipitates with reagents like silver nitrate, lead nitrate, and copper sulfate. This quiz covers reaction equations, types of precipitates, and their colors under various conditions.