
What is the formula of silver glance?
A.$AgCl$
B.$Ag_{2}S$
C.$SiO_{2}$
D.$AgNO_{3}$
Answer
453k+ views
Hint: Silver glance is a black-grey cubic silver sulfide mineral. It is an important constituent of silver ore and contains almost 87% silver and around 12.94% sulfur. Silver glance is also known as Argentine.
Complete answer:
- Silver glance or Argentine is the most important silver ore after galena. Galena is a lead ore that contains about 1% silver.
- The chemical formula of silver glance is $Ag_{2}S$, and the chemical name is silver sulfide. It is sulfide ore of silver. Its color is lead-grey to black.
- Its molecular weight is 447.80 g. it contains silver in about 87.06% and sulfur in 12.94%.
- It has an isometric structure and is stable only at temperatures above 173 degree Celsius.
- The argentine word comes from the Latin word for silver, Argentum, from which the chemical symbol for silver, Ag, is also derived.
- It has a metallic luster with opaque crystals.
- Silver glance is sectile, which means it can be cut with a knife, like lead and fresh shiny surfaces will eventually form a dull coating after prolonged exposure to light.
- It is termed so because it contains silver in large amounts and another constituent than silver is sulfur only.
Therefore, the correct answer is (B).
Note:
When silver glance cools to normal temperature, it turns into its monoclinic polymorph called ‘acanthite’. Thus, we can say that it is the high-temperature form of acanthite.
Complete answer:
- Silver glance or Argentine is the most important silver ore after galena. Galena is a lead ore that contains about 1% silver.
- The chemical formula of silver glance is $Ag_{2}S$, and the chemical name is silver sulfide. It is sulfide ore of silver. Its color is lead-grey to black.
- Its molecular weight is 447.80 g. it contains silver in about 87.06% and sulfur in 12.94%.
- It has an isometric structure and is stable only at temperatures above 173 degree Celsius.
- The argentine word comes from the Latin word for silver, Argentum, from which the chemical symbol for silver, Ag, is also derived.
- It has a metallic luster with opaque crystals.
- Silver glance is sectile, which means it can be cut with a knife, like lead and fresh shiny surfaces will eventually form a dull coating after prolonged exposure to light.
- It is termed so because it contains silver in large amounts and another constituent than silver is sulfur only.
Therefore, the correct answer is (B).
Note:
When silver glance cools to normal temperature, it turns into its monoclinic polymorph called ‘acanthite’. Thus, we can say that it is the high-temperature form of acanthite.
Recently Updated Pages
Master Class 10 General Knowledge: Engaging Questions & Answers for Success

Master Class 10 Computer Science: Engaging Questions & Answers for Success

Master Class 10 Science: Engaging Questions & Answers for Success

Master Class 10 Social Science: Engaging Questions & Answers for Success

Master Class 10 Maths: Engaging Questions & Answers for Success

Master Class 10 English: Engaging Questions & Answers for Success

Trending doubts
A number is chosen from 1 to 20 Find the probabili-class-10-maths-CBSE

Find the area of the minor segment of a circle of radius class 10 maths CBSE

Distinguish between the reserved forests and protected class 10 biology CBSE

A boat goes 24 km upstream and 28 km downstream in class 10 maths CBSE

A gulab jamun contains sugar syrup up to about 30 of class 10 maths CBSE

Leap year has days A 365 B 366 C 367 D 368 class 10 maths CBSE
