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ICSE-SOME P-BLOCK ELEMENTS -TRUE OR FALSE TYPE QUESTION
- Boron belongs to group 13 of the periodic table. True/False.
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- Boric acid is used as an antiseptic
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- At high temperature , boron burns in air to give a mixture of B2 O3 an...
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- Boron is used in glass industry for making specific type of glass.
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- BH3 is a stable hydride.True/False
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- Borax glass is a specific type of glass.
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- Comment over the following statement Boric acid (H3 BO3) is a tribasic...
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- The atomic radii of group 13 elements are larger than those of group 2...
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- The elements of group 13 are more electronegative than those of groups...
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- Diborane is an electron-deficient compound.
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- AlCl3 is a Lewis acid.
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- The Lewis acid strength of BF3 is less than that of BCl3 Why?
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- Being electron deficient, boron halides exist as dimers.True/False.
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- Comment over the following statement Ga2 O3 is an amphoteric oxide.
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- Comment over the following statement The electronegativity of Pb is h...
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- Due to inert pair effect, the stability of +2 oxidation state increase...
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- Silicon tetrachloride undergoes hydrolysis to form silicic acid.
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- CO is an acidic oxide.
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- The viscosity of silicone oils is not affected much by a variation in ...
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