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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.
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- According to IUPAC nomenclature sodium nitroprusside is named as
- Mass of one atom of X is 2.66 x 10⁻²³ g, then its 32 g is equal to
- If Avogadro number NA, is charged from 6.022 ˣ 10²³ mol⁻¹ to 6.022 ˣ 10²⁰ mol⁻¹
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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
- The law of equilibrium was first given by
- According to IUPAC nomenclature sodium nitroprusside is named as
- Mass of one atom of X is 2.66 x 10⁻²³ g, then its 32 g is equal to
- If Avogadro number NA, is charged from 6.022 ˣ 10²³ mol⁻¹ to 6.022 ˣ 10²⁰ mol⁻¹
- Carbon and silicon belong to (IV) group.The maximum coordination number
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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