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Practice each question, then open the answer or worked solution.
The element which exists in a liquid state for a wide range of temperature and
can be used for measuring high temperature is
Option (iii) is the answer.
Which of the following is a Lewis acid?
Option (i) is the answer.
The geometry of a complex species can be understood from the knowledge of
type of hybridisation of orbitals of the central atom. The hybridisation of orbitals
of the central atom in [Be(OH)4]
–
and the geometry of the complex are respectively
Option (i) is the answer.
Which of the following oxides is acidic?
Option (i) is the answer
The exhibition of the highest co-ordination number depends on the availability of
vacant orbitals in the central atom. Which of the following elements is not likely
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