A. Boron B. Thallium C. Aluminium D. All of these
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A. Cryolite B. Mica C. Corundum D. Carnalite
A. Atomic size of Al< Mg B. Atomic size of MgMg
A. Aluminium oxide is highly stable B. Aluminium oxide is reactive C. Reducing agents contaminate D. The process pollutes the environment.
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A. Carbon B. Silicon C. Germanium D. Lead
A. Alkaline solution B. Acidic solution C. Bleaching solution D. Basic solution
A. sp³ and sp² B. sp² and sp³ C. Sp² and sp² D. sp³ and sp³
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A. Localised on every third carbon atom B. Present in antibonding orbitals C. Localised on each carbon atom D. Spread out between the structure
A. Variable valency B. Low electron affinity C. High ionisation energy D. Property of catenation