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 scientists had done some calculations for the fifth state of matter?
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Biogas is produced from biomass by
Which of the following is an unsaturated Hydrocarbon?
Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses?
Saturated carbon compounds can form which types of chain structures?
I. Straight chain
II. Branched chain
An atom can achieve octet by ______.
I. sharing electron
II. gaining electron
III. losing electron
Which substance is produced when alcohol is added with petrol and used as a fuel?
Isotopes have ______.
I. similar physical quantities and different chemical properties
II. different physical properties
III. similar chemical properties
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