Mention two important ores of boron....

Mention two important ores of boron.

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Knowledge Check

Important ore of iron is

A

Garnierite

B

Pentalandite

C

Haematite

D

Smaltite

An important ore of iron is

A

pyrites

B

malachite

C

haematite

D

sidenite

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CBSE COMPLEMENTARY MATERIAL-P-BLOCK ELEMENTS-1-MARK QUESTION

Mention two important ores of boron.
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Name the element of group 13 which forms only covalent compounds.
04:45
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Why the atomic radius of gallium is less than that of Al?
01:34
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Why boron forms electron deficient compounds?
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Why boron does not exist as B^(3+) ion in solution or in compound ?
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Why trihalides of group 13 elements fume in moist air?
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Aluminium forms [AIF(6)]^(3-) ion but boron does not form [BF(6)]^(3-)...
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Why boric acid is a monobasic acid ?
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White fumes appear around the bottle of anhydrous aluminium chloride. ...
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AlCl(3) exist as dimer while BCl(3) exist as monomer, why?
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Hybridisation of Boron in B(2)H(6) molecule is :
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Write the chemical formula of the following substances: Inorganic benz...
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Explain what happens when boric acid is heated.
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Why PbCl(4) is good oxidising agent?
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What are germanes and plumbanes?
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Give one example of zeolite.
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Mention the type of hybridization of carbon in diamond an graphite.
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