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Science (086) — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [1] straightforward initial-understanding
Tungsten is preferred over most other metals for making the filament of an electric bulb. Which two properties of tungsten make it most suitable for this purpose?
Generated by claude-sonnet-4-6 · 2026-06-26 01:08 · grounding rag
Model Answer

Tungsten has a very high melting point (3380°C) and is a strong metal, so it can get extremely hot to emit light without melting.

Source: Chapter 11, Section 11.7.1

Explanation

The passage explicitly states both properties: high melting point (3380°C) and being a strong metal. Examiners expect both properties named clearly. Avoid vague terms like "good conductor" — the key traits are mechanical strength and high melting point, not conductivity.

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.