Ncert Solutions Chemistry Class 11th
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10 months agoContributor-Level 10
The catenation depends on the strength of the element-element bond. As we move down the group 14, the element-element bond energies decrease rapidly, viz. C–C (355 kJ mol–1), Si–Si (222 kJ mol–1), Ge–Ge (167 kJ mol–1) and Sn–Sn (155 kJ mol–1), so the tendency for catenation decreases in the order C > Si > Ge > Sn.
New answer posted
10 months agoContributor-Level 10
Carbon atoms have the tendency to linkwith one another through covalent bonds to form chains and rings. This property is calledcatenation. This is because C—C bonds are very strong.
New answer posted
10 months agoContributor-Level 10
Boron shows anomalous behaviour due to small atomic size, high electronegativity, high ionization energy and absence of d-orbital of B
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10 months agoNew answer posted
10 months agoNew answer posted
10 months agoContributor-Level 10
(d) CO2 is regarded as anhydride of carbonic acid.
H2CO3 ————> H2O + CO2
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10 months agoContributor-Level 10
(d) is an incorrect statement because non-metal oxides are acidic or neutral whereas metal oxides are basic in nature.
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10 months agoContributor-Level 10
(c) Boron halides are Lewis acids and can accept a pair of electrons from amines to form addition product.
New answer posted
10 months agoContributor-Level 10
(d) Heavier elementsdo not form pπ– pπ bonds because their atomicorbitals are too large and diffuse to haveeffective overlapping.
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