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AAKASH SERIES-ELEMENTS OF BORON FAMILY-OBJECTIVE EXERCISE -1 (Borax, Boric acids and Boron hydrides)
- 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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- In metallurgy, the substance which can act as de-oxidizer is
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- Dihydrate of alumina is called
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- Diborane reacts with carbon monoxide to form
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- Diborane on hydrolysis gives
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- Regarding 'Al' the wrong statement is
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- Which of the following has no reaction with HCI ?
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- The H-B-H bridged angle in diborane is
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- Borax when dissolved in water exbibits
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- On strong heating, Boric acid gives
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