Subjective Type

$$(CH_3)_3$$ COH is less acid than $$(CH_3)_3$$ SiOH. Why ?

Solution

Si has vacant d orbitals which are capable of accommodating electron pair form existing oxygen atom forming d-p back bonding.Deficiency of electrons on O atom causes bond pair of O-H to stay closer to O.This causes tendency of H atom to go out as cation increases.

SIMILAR QUESTIONS

Chemical Bonding

$$BF_{3}$$ forms an adduct with $$NH_{3}$$ because:

Chemical Bonding

PF$$_{3}$$ can act as a donor molecule while NF$$_{3}$$ shows little tendency to act as a donor. This is because in PF$$_{3}$$, lone-pair on P is easily donated compared to that of N.

Chemical Bonding

Which of the following can act as Lewis acid?

Chemical Bonding

Which of the following molecule is not hypovalent

Chemical Bonding

Which of the following does not contain any coordinate bond?

Chemical Bonding

Which one of the following does not have a pyramidal shape?

Chemical Bonding

Which of the following does not contain any coordinate bond?

Chemical Bonding

Explain the following on the basis of valence bond theory: $$BF_{3}$$ is planar but $$NH_{3}$$ is not.

Chemical Bonding

$$BF_3$$ has less lewis acidic property than $$BBr_3$$ . Why ?

Chemical Bonding

In co-ordinate bonds, the acceptor atoms must essentially contain in its valency shell an orbitial:

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