Assertion : Conductivity of silicon increases by doping it with group-15 elements.
Reason : Doping means introduction of small amount of impurities like P, As or Bi into the pure crystal.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Which of the following shows bond in silicone?
Si-C-Si-C-Si
Si-Si-Si-Si
-Si-O-Si-O-Si-
Si-C-Si-O-Si
Which of the following is an example of chain silicates?
Kaolinite
Zircon
Benitonite
Diopside
D.
Diopside
Chain silicates are often called as inosilicates. For example, Diopside (CaMg[(SiO3)2].
Which of the following products are formed when SiCl4 vapour are passed over hot Mg ?
SiCl2 + MgCl2
Si + MgCl2
Mg2Si + MgCl2
MgSiCl6