Which of the following nouns is a material noun?

Question

Accepted Answer

Here's the explanation for why "Iron" is a material noun and why the other options are not:

**Explanation:**

A material noun refers to the matter or substance from which things are made. These nouns are typically uncountable and represent the raw materials.

**Why Option 4 (Iron) is correct:**
"Iron" is a material noun because it refers to a specific substance, a metal, from which various objects are manufactured. For example, we make tools, gates, and structures *from iron*. It represents the raw material itself, fitting the definition of a material noun perfectly.

**Why Option 1 (Irony) is incorrect:**
"Irony" is an abstract noun. It refers to a concept, a figure of speech, or a state of affairs that is contrary to what is expected or intended. It is not a physical substance or material from which things are made.

**Why Option 2 (Class) is incorrect:**
"Class" can be a collective noun (referring to a group of students) or a common noun (referring to a category or a lesson). It does not refer to a material or substance from which things are made.

**Why Option 3 (Kalidas) is incorrect:**
"Kalidas" is a proper noun. It is the name of a specific person (a famous classical Sanskrit writer). Proper nouns always begin with a capital letter and refer to unique individuals, places, or things, not a material or substance.