Common Names — Set 3
Chemistry · सामान्य नाम · Questions 21–30 of 60
What is the common name for Zinc Sulfate Heptahydrate?
Correct Answer: D. White vitriol
• **White vitriol** = Zinc sulfate heptahydrate is known as white vitriol. • (Contextual detail from explanation) • 💡 Wrong-option analysis: A: Blue vitriol; B: Red vitriol; C: Green vitriol
What is the common name of Sodium Thiosulfate?
Correct Answer: B. Hypo
• **Hypo** = Sodium thiosulfate is commonly known as 'hypo' in the field of photography. • (Contextual detail from explanation) • 💡 Wrong-option analysis: A: Alum; C: Nitre; D: Borax
Which compound is commonly called 'Dead Burnt Plaster'?
Correct Answer: A. Anhydrous calcium sulfate
• **Anhydrous calcium sulfate** = Anhydrous calcium sulfate is called dead burnt plaster because it loses all water of crystallization. • (Contextual detail from explanation) • 💡 Wrong-option analysis: B: Calcium oxide; C: Calcium carbonate; D: Calcium chloride
What is the common name for Calcium Carbonate?
Correct Answer: D. Limestone
• **Limestone** = Calcium carbonate is the chemical name for limestone, chalk, and marble. • (Contextual detail from explanation) • 💡 Wrong-option analysis: A: Slaked lime; B: Plaster of Paris; C: Quick lime
Which substance is known as 'Pearl Ash'?
Correct Answer: C. Potassium carbonate
• **Potassium carbonate** = Potassium carbonate is commonly referred to as pearl ash. • (Contextual detail from explanation) • 💡 Wrong-option analysis: A: Calcium carbonate; B: Sodium carbonate; D: Ammonium carbonate
What is the common name of Solid Carbon Dioxide?
Correct Answer: D. Dry ice
• **Dry ice** = Solid carbon dioxide is called dry ice because it sublimes directly into gas without melting. • (Contextual detail from explanation) • 💡 Wrong-option analysis: A: Soft ice; B: Hard ice; C: Heavy ice
Which compound is commonly known as 'Glauber's Salt'?
Correct Answer: B. Sodium sulfate
• **Sodium sulfate** = Sodium sulfate decahydrate is known as Glauber's salt. • (Contextual detail from explanation) • 💡 Wrong-option analysis: A: Sodium nitrate; C: Sodium chloride; D: Sodium bicarbonate
What is the common name for Ethanol?
Correct Answer: B. Grain alcohol
• **Grain alcohol** = Ethanol is commonly known as grain alcohol because it is often produced from corn or wheat. • (Contextual detail from explanation) • 💡 Wrong-option analysis: A: Wood spirit; C: Cane sugar; D: Fruit sugar
Which chemical is commonly known as 'Wood Spirit'?
Correct Answer: A. Methanol
• **Methanol** = Methanol is called wood spirit because it was originally produced by the destructive distillation of wood. • (Contextual detail from explanation) • 💡 Wrong-option analysis: B: Butanol; C: Ethanol; D: Propanol
What is the common name of Hydrated Potassium Aluminum Sulfate?
Correct Answer: C. Alum
• **Alum** = Hydrated potassium aluminum sulfate is commonly known as alum. • (Contextual detail from explanation) • 💡 Wrong-option analysis: A: Nitre; B: Borax; D: Hypo