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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
Why is tungsten preferred over other metals for making the filaments of electric bulbs?
Generated by claude-sonnet-4-6 · 2026-06-26 01:08 · grounding rag
Model Answer

Tungsten has a very high melting point (3380°C), so it can get extremely hot to emit light without melting, making it ideal for bulb filaments.

Source: Chapter 11, Section 11.7.1

Explanation

The examiner expects two linked points: high melting point (with the value as a bonus) → can withstand high temperature without melting → emits light. Keep it to one sentence for 1 mark.

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