SiCl4 on hydrolysis forms 'X' and HCl Compound 'X' loses water at l000°C and gives 'Y'. Compounds 'X' and 'Y' respectively are
H2SiCl6, SiO2
H4SiO4, Si
SiO2, Si
H4SiO4, SiO2
In TeCl4 the central atom tellurium involves :
sp3 hybridisation
sp3d hybridisation
sp3d2 hybridisation
dsp2 hybridisation
A coordiante bond is a dative covalent bond. Which of the below is true?
Three atom form bond by sharing their electrons
Two atom form bond by sharing their electrons
Two atoms form bond and one of them provides both electrons
Two atoms form bond by sharing electrons obtained from third atom
The number of antibonding electron pairs in molecular ion on the basis of molecular orbital theory is
2
3
4
5
The bond energy is the energy required to
dissociate one mole of the substance
dissociate bond in 1 kg of the substance
break one mole of similar bonds
break bonds in one mole of substance
Geometry of anion is
tetrahedral
trigonal
trihedral
pentagonal
A.
tetrahedral
The basic building block of all silicate minerals is the [SiO4]4− tetrahedron. There are four covalent Si−O bonds. Each oxygen atom forms one vertex of the tetrahedron. The silicon to oxygen atom ratio is 1:4.