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AAKASH SERIES-ELEMENTS OF BORON FAMILY-OBJECTIVE EXERCISE -1 (Borax, Boric acids and Boron hydrides)
- (A): Borax bead test is not suitable for Al(III) (R) : Al2 O3 is ins...
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- Glassy bead is obtained by heating
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- Borax bead test is not given by
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- Boric acid is prepared from borax by the action of
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- The hybridisation of boron in ortho boric acid is
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- Boric acid (H3 BO3) has
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- Boric acid is polymer due to
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- The number of atoms involved in bridged bonds in one diborane molecule...
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- The bonds not present in diborane are
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- When B is reacted with conc. H2 SO4, the gaseous product is
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- Borax bead is a mixture of
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- The number of bridge hydrogen atoms in diborane is
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- The formula of kernite or razorite is
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- Which of the following is used as a rocket fuel?
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- In diborane, the hybridisation of Boron is
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- The number of three centred, two electron bonds in diborane is
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- Reduction of BCI,3 with lithium aluminium hydride gives
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- Basicity of H3 BO3 is
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- The gas liberated when aluminium reacts with conc. H2 SO4 is
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- Which metal forms a protective oxide layer to prevent corrosion ?
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