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Chemistry
IMPORTANT
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Correct trend of first ionisation energy in group-13 is

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Important Questions on The p-Block Elements

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Chemistry
IMPORTANT
B2O3 substitutes non metal oxides from several metal salts because
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Chemistry
IMPORTANT
Aluminium chloride exists as dimer, Al2CI6 in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives: 
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Chemistry
IMPORTANT
Amorphous boron on burning in air forms:
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Chemistry
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Which of these is most stable?
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Chemistry
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N2O5 is heated in presence of sodium to produce a solid and a gaseous product. Hybridization of central atom of anion in the solid product is-
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Chemistry
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Three allotropes A, B and C of phosphorous in the following change are respectively -

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MEDIUM
Chemistry
IMPORTANT
Of the following, which has three electron bond in its structure?