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CBSE COMPLEMENTARY MATERIAL-P-BLOCK ELEMENTS-1-MARK QUESTION
- 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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- Why aluminum utensils should not be kept in water overnight.
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- Explain what happens when boric acid is heated.
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- BCl(3) exists but BH(3) does not. Explain.
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- WhySnCl(4) is more covalent than SnCl(2)
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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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- Why "CCl"(4) is insoluble in water but SiCl(4) is soluble in water? Ex...
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- Give two uses of silicones.
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- Graphite is used as a lubricant. Explain.
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