Pages

▼
Showing posts with label 14th Group: CARBON FAMILY:. Show all posts
Showing posts with label 14th Group: CARBON FAMILY:. Show all posts
Sunday, April 24, 2022

14th Group: Carbon Family:

›
(A) Silicon compounds: (1)  Silicon and Its Compounds: (2)  Silicon Oxide : Silica (SiO2): (3)  Silicon Carbide(SiC): Carborundum: (4)  Sili...
Wednesday, March 16, 2022

Buckminsterfullerene: Bucky Balls: Allotrope of Carbon:

›
Fullerenes are made by the heating of Graphite in an electrical arc in the presence of inert gases such as helium or argon. Fullerenes are t...
Tuesday, February 9, 2021

Which of the following has only bridge bond? (A) [BeCl2]n (B) [BeH2]n (C) [SnCl2]n (D) [BeH3]2

›
The compounds (A) and (B) have only bridge bond. Related Questions: (1)  What is the difference between the structure of AlCl3 a...
Tuesday, December 22, 2020

Why are the properties of CO2 and SiO2 different?

›
Their properties are very different because CO 2 is a chain-like three-atom   molecule and SiO 2 is a solid compound with the three dimens...
Thursday, November 12, 2020

How to prepared Carbon Suboxide (C3O2) ?

›
Carbon Suboxide is obtained by heating Malonic acid in the presence of P4O10 which act as dehydrating agent. It is a foul smelling gas.     ...
Wednesday, October 7, 2020

What is "Zeolite's" ?

›
  Zeolite ia Sodium, Potassium salt of alumino silicate. The general formula of Zeolite is as                                   M x/n [(AlO...
Monday, October 5, 2020

Why does SiCl4 undergo hydrolysis whereas CCl4 doesn't?

›
Their is mainly two reason that's why  SiCl4 undergo hydrolysis while CCl4 Not . First is steric hindrance , in case CCl4 Cl atoms  blo...
Thursday, October 1, 2020

Graphite is considere, thermodynamically the most stable allotrope of carbon why ?

›
Thermodynamically the most stable allotrope of carbon is considered to be graphite. This is due standard enthalpy of formation of graphite ...

All the carbon atom of fullerenes (C60) are equivalent but all C-C bond are not equivalent why ?

›
In the fullerenes (C60) structure C-C bonds of two different bond length occur at the fusion of two six membered rings the bond length is...
Thursday, February 13, 2020

What are most common cyclic meta silicates?

›
(1) Number  of oxygen atoms shared per tetrahedron is 2(Two). (2)  Total number of shared oxygen towards one Si atom is one (1) (3) ...
Wednesday, February 12, 2020

What are the Silicones? Give one example one cyclic Silicone?

›
Silicones are organosilicon polymeric compounds containing repeated R 2 SiO units and (-Si-O-Si-) linkage. The name is given silicone becau...
Sunday, February 9, 2020

Is all the C-C bond length in fullerene is equal ?

›
"No" In fullerene all the carbon atoms are equivalent but all C-C bond length are not equal . In the fullerene structure  C-C b...

How many six membered ( hexagons) and five membered (Pentagons) carbon ring present in (C60) fullerene ?.

›
C 60  is the most stable fullerene. It has the shape of a football and called  buckminsterfullerene.   C60 consists of fused five and ...
Saturday, February 8, 2020

What are the hydrolysis products of urea ?

›
Urea is an organic diamide and is subjected  to hydrolysis by water, the solvent in urine. Water is the nucleophile in the substition a...

Why CO2 is a gas, but SiO2 is a high melting solid?.

›
Carbon can form multiple bonds, but silicon cannot. The CO2 molecules is linear with zero dipole moment. Thus, the intermolecular forces ...