Metallic Carbonyls and Electronic Configuration Quiz

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What do metallic carbonyls contain?

Hydrogen atoms attached to carbon and oxygen atoms

Metallic ions bonded to carbon and oxygen atoms

Lone pairs of electrons on carbon and oxygen atoms (correct)

Double bonds between carbon and oxygen atoms

In which oxidation state is the metal atom in metallic carbonyls said to be?

Negative

Zero (correct)

Variable

Positive

What type of carbonyl contains only one metallic atom per molecule?

Polynuclear carbonyls

Heteronuclear carbonyls

Mononuclear (or monomeric) carbonyls (correct)

Bridged carbonyls

What is the general method of preparation for simple carbonyls like nickel tetracarbonyl?

Direct combination of nickel with carbon monoxide at suitable temperature and pressure Signup and view all the answers

What do polynuclear carbonyls contain?

Two or more metallic atoms per molecule Signup and view all the answers

What is the general formula for polynuclear carbonyls?

Ni(CO) Fe, (CO), Co, (CO), Fe, (CO),2.Co.(CO) Signup and view all the answers

Which metal compound has a tetrahedral shape due to sp³ hybridization of the metal atom?

Nickel tetracarbonyl Ni(CO) Signup and view all the answers

Why is Iron pentacarbonyl Fe(CO) diamagnetic?

Due to dsp hybridization of the iron atom Signup and view all the answers

What is the coordination number of iron in Fe_{2}(CO)_{9}?

7 Signup and view all the answers

In polynuclear carbonyls, what does each Fe-atom link to in Fe_{2}(CO)_{9}?

Three bridging C=O groups by a coordinate bond Signup and view all the answers

What is the basis of classification for different types of silicates?

The shape of SiO4 anions Signup and view all the answers

Why are some silicates insoluble in water?

As a result of the great strength of Si-O bond Signup and view all the answers

What causes the formation of SiO4 anions?

The ap³ hybridisation of Si atom Signup and view all the answers

What is the shape of SiO4 anions?

Tetrahedral Signup and view all the answers

How are all silicates similar in terms of their anion composition?

They all contain SiO4 anions Signup and view all the answers

What type of silicates contain discrete SiO4 tetrahedral anions?

Pyrosilicates Signup and view all the answers

Which type of silicates are known for their extensive industrial use as abrasives?

Chain silicates Signup and view all the answers

In which type of silicates are the SiO4 tetrahedral units arranged in a cycliz like structure?

Cyclic or ring silicates Signup and view all the answers

Which silicate type contains the discrete Si2O2^{6-} anion formed by joining two SiO4 tetrahedral units through one oxygen atom?

Pyrosilicates Signup and view all the answers

What do zeolites primarily consist of, and what characteristic feature do they possess?

Alumina and a three-dimensional network with open structure Signup and view all the answers