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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

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). The yellow solution is of

AAKASH SERIES-ELEMENTS OF CARBON FAMILY-OBJECTIVE EXERCISE - 2
  1. The C-O bond order in CO and CO(2) respectively

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  2. The high poisonous nature of CO is due to its

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  3. Carboxy haemoglobin is times more stable than oxyhaemoglobin

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  4. Which of the following statements is correct?

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  5. A colourless gas which burns with blue flame and reduces CuO to Cu is

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  6. Maximum covalency exhibited by Carbon and Silicon respectively are

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

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  8. Correct statements regarding silicones are a) They are used in the...

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

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

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

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

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

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  14. How many comers of SiO(4) units are shared in the formation of three d...

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  15. The zeolite used to convert alcohols directly into gasoline is

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  16. Silicones contain silicon strongly bonded to and atoms.

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  17. Silicones are used

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  18. Zeolites are used as 1) ion exchangers 2) molecular sieves 3) w...

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  19. The empirical formula of silicones is analogous to

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  20. What is the catalyst used in the following reaction? 2CH(3)Cl+Sioverse...

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