Boron Family and Carbon Family MCQs for Competitive Exams

MCQS

Boron Family and Carbon Family MCQs for Competitive Exams

Practice with answers, explanations, and exam-focused revision notes.

108 MCQs Page 8

Topic Notes: Boron Family and Carbon Family

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Boron Family and Carbon Family MCQs in Chemistry are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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71
In which carbon allotrope is each carbon atom covalently bonded to three others in a planar hexagonal arrangement?
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72
Which of the following metals has the lowest melting point?
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73
Which of the following elements is characterized by a very low melting point?
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74
Quartz is widely utilized as a piezoelectric material. Which element is a primary component of its chemical structure?
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75
Which element possesses the unique property of catenation, allowing it to form stable bonds with other atoms of the same element to create long chains and complex molecules?
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76
Which of the following substances is not considered an allotrope of carbon?
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77
What conditions are required to synthesize diamonds from pure carbon?
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78
What is the primary chemical composition of a diamond?
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79
What is the chemical composition of the gemstones known as rubies and sapphires?
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80
Which material is primarily used in the core of a writing pencil?
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