Boron cannot form which one of the following anions?
(1) BO2-
(2) BF63-
(3) BH4-
(4) B(OH)4-
Due to absence of low lying vacant d orbital in B, sp3d2hybridization is not possible hence BF63-will not formed.
Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?
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The common name of dichlorodifluoromethane is _____.
Kidney stones are composed of ______.
Which of the following can be beaten and converted into thin sheets?
The substances which have very low ignition temperature and can easily catch fire with a flame are called _____________ substances.
Brownish film formed on iron when left in open is called?
The temperature at which a solid melts to become a liquid at the atmospheric pressure is called its ___________.
Chemical formula for sulphurous acid is:
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