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When some of Si^(+4) in frame work sili...

When some of `Si^(+4)` in frame work silicates are replaced by `Al^(+3)` and an additional metal ion, it results in the formation of

A

Zeolites

B

Silicones

C

Disilicates

D

Glass

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The d-orbitals participating in hybridisation of metal atom may be from the n & (n-1) shell. This depends on the nature of metal and nature of ligand. The complexes involving the inner d-level (inner orbital complexes) results when the ligand is a powerful (or) strong ligand results in a diamagnetic (or) low spin complexes. A weak ligand usually results in the formation of outer orbital complex (or) high spin complex. The hybridisation of Cu in [CuCl_(4)]^(2-)&[Cu(NH_(3))_(4)]^(2+) are respectivly

The d-orbitals participating in hybridisation of metal atom may be from the n & (n-1) shell. This depends on the nature of metal and nature of ligand. The complexes involving the inner d-level (inner orbital complexes) results when the ligand is a powerful (or) strong ligand results in a diamagnetic (or) low spin complexes. A weak ligand usually results in the formation of outer orbital complex (or) high spin complex. Number of unpaired electrons present in [Fe(CN)_(6)]^(4-)&[Fe(H_(2)O)_(6)]^(2+) are respectively.

The d-orbitals participating in hybridisation of metal atom may be from the n & (n-1) shell. This depends on the nature of metal and nature of ligand. The complexes involving the inner d-level (inner orbital complexes) results when the ligand is a powerful (or) strong ligand results in a diamagnetic (or) low spin complexes. A weak ligand usually results in the formation of outer orbital complex (or) high spin complex. Among the following sets, the one having the same geometry and same magnetic property for both complexes is

Read the following passage and answer the questions followed by is silicates are a group of minerals which have the general formula SiO_(2) , the most common of which is quartz. Quartz is a frame work silicate with SiO_(4) , tetrahydra arranged in spirals. The spirals can turn in clockwise or anticlock wise direction a feature that results in there being two mirror images opticlaly active varities of quartz. The silicate anion in the mineral kinoite is a chain of three SiO_(4) , tetrahedra that share coners with adjacent tetrahedra. The mineral also contain Ca^(2+),Cu^(2+) ions and water molecules in 1 : 1 : 1 ratio. The mineral is represented as

A spinel is an important class of oxides consisting of two types of metal ions with oxide ions arranged in CCP layers. The normal spinel has 1/8 th of the tetrahedral void occupied by one type of metal and one half of the octahedral voids occupied by another type of metal ions such a spinel is formed by Zn^(2+), Al^(3+) and O^(2-) with Zn^(2+) in tetrahedral void. Then the simplest formula of that spinel is Zn_(x)Al_(y)O_(z) then x + y + z is

The stability of complex ion depend upon charge, size electronegativity of metal ion. Greater the charge of metal ion greater would be the stability. As size of metal ion decreases stability of metal ion increases complex ion more stable if chelating ligand present. Fe^(+3)+6CN^(-)hArr[Fe(CN)_(6)]^(-3),K_(1) Fe^(+2)+6CN^(-)hArr[Fe(CN)_(6)]^(-4),K_(2) : the value of K_(1) and K_(2) are

A compound (A) is greenish crystalline salt, which gave the following results. i) Addition of BaCl_(2) solution to the solution of (A) results in the formation of white ppt. (B). which is insoluble in dil HCL ii) On heating (A), water vapours and two oxides of sulphur, (C) and (D) are liberated leaving a red brown residue (E) iii) (E) dissolves in warm conc. HCI to give a yellow solution (F). iv) With HS the solution (F) yields a pale yellow ppt. (G) which when filtered, leaves a greenish filtrate (H). v) Solution (F) on treatment with thiocynaate ions gives blood red coloured compound (I). White ppt (B) is of

A compound (A) is greenish crystalline salt, which gave the following results. i) Addition of BaCl_(2) solution to the solution of (A) results in the formation of white ppt. (B). which is insoluble in dil HCL ii) On heating (A), water vapours and two oxides of sulphur, (C) and (D) are liberated leaving a red brown residue (E) iii) (E) dissolves in warm conc. HCI to give a yellow solution (F). iv) With H2S the solution (F) yields a pale yellow ppt. (G) which when filtered, leaves a greenish filtrate (H). v) Solution (F) on treatment with thiocynaate ions gives blood red coloured compound (I). Compound (A) is

AAKASH SERIES-REVISION EXERCISE -ELEMENTS OF CARBON FAMILY
  1. Which of the following decomposes steam to form dioxide and dihydrogen...

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  2. An acidic flux among the following is

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  3. What is the covalency of silicon in H(2)SiF(6)?

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  4. {:("List -1 " ,"List -2 "),("A) IVA group", "1) Amorphous"),("B) Tridy...

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  5. Incorrect statement regarding CO2 is

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  6. Among the following substituted silanes the one which will give rise t...

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  7. Silicones are used as water proof materials because they have

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  8. When some of Si^(+4) in frame work silicates are replaced by Al^(+3) ...

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  9. The main common constituent of producer gas and water gas is

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  10. The structure and hybridisation of Si(CH(3))(4) is ,

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  11. CO(2) and N(2) are non-supporters of combustion. However, for putting...

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  12. Which of the following does not represent the correct resonance strutu...

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  13. PbCl(4) exists, but PbBr(4) and PbI(4) do not. This is because of

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  14. Two tetravalent elements A and B form dioxides. Both react with NaOH ...

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  15. Mark the oxide which is amphoteric in character

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  16. Which of the following halides is least stable and has doubtful existe...

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  17. Example of crystalline solid .

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  18. In the penultimate shells, correct configur-ations of group 14 element...

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  19. False among the following

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  20. Carbon can not expand its valency beyond 4, because

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