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Hardest compound of boron is
Options
(a) Magnesium boride
(b) aluminium boride
(c) boron nitride
(d) boron carbide
Correct Answer:
boron carbide
Explanation:
Boron carbide is written as B₃C.It is produced by reducing B₂O₃ with C at 1600⁰C. Fibres of B₄C have an enormous tensile strength and are used to make bullet-proof clothing.
Related Questions: - A sample of CaCO₃ is 50% pure. On heating 1.12 L of CO₂ at STP is obtained
- What will be the partial pressure of He and O₂, if 200 mL of He at 0.66 atm and 400 mL
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Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A sample of CaCO₃ is 50% pure. On heating 1.12 L of CO₂ at STP is obtained
- What will be the partial pressure of He and O₂, if 200 mL of He at 0.66 atm and 400 mL
- The orthophosphoric acid is a
- The acidic, basic or amphoteric nature of Mn₂O₇, V₂O₅ and CrO are respectively
- Benzylamine is a stronger base than aniline because
Topics: S and Some P Block Elements (157)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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