Inorganic Chemistry Answers

The tendency of an atom to attract shared electron pair of bond towards itself is known as

Question 16 : Although diamond occur in nature but it can be obtained artificially by __________.
By boiling and quick quenching of carbon, silicon and germanium
By boiling and quick quenching of carbon and silicon
Subjecting carbon to high temperature and pressure
Subjecting silicon to high temperature and pressure

Question 17 : _______ is formed when petroleum gases or natural gas is burnt in a limited supply of air.
Coke
Carbon black
Charcoal
Silicon oxide

Question 18 : ________ is used to strenghten rubber, as a pigment in inks, paints, paper and plastics.
Carbon black
Lead
Coke
Graphite

Question 13 : Diamond and SiC (silicon carbide) have the same structure, but, they differ in that __________.
In diamond , each carbon is tetrahedrally bonded to four other carbons, while in SiC silicon is tetrahedrally bonded to four other carbons
In SiC , each carbon is tetrahedrally bonded to four other carbons, while in diamond each silicon is tetrahedrally bonded to four other carbons
In SiC, each Si is hexahedrally bonded to four other carbon while carbon is hexahedrally bonded to four other carbon in diamond
In diamond, each Si is hexahedrally bonded to four other carbons while carbon is hexahedrally bonded to four other carbon in SiC

Question 14 : __________ is a component of coal and petroleum.
Fluorine
Neon
Carbon
Argon

Question 15 : Which of the following options is used in glass and cement manufacture.
Silicates
Carbon IV oxide
Lead
Carbon black

Question 11 : Among the Group 4 elements moving from carbon to silicon the covalent radius increases sharply afterwards the increase is gradual, this is attributed to __________.
As we move down the group upto silicon, the effect of additional shell leads to a sharp increase in size, subsequently it becomes easy for electron loss, leading to gradual increase in size
As we move down the group after silicon, reduction takes effect as against oxidation leading to gradual increase in size
As we move down the group upto silicon, effective nuclear charge outbalances the effect of additional shell leading to a sharp increase and afterwards gradual increase in size
As we move down the group after silicon, effective nuclear charge outbalances the effect of additional shell leading to only a marginal increase in size

Question 12 : The different layers or molecules of graphite are held together by __________.
Ionic bonds
Covalent bonds
Dative bonds
van der Waals forces

Question 5 : The ability of the molecules of graphite held together to slide pass one another imparts in it ___________.
Brittleness
Softness
Rigidity
Lustre

Question 6 : Which of the following statement is correct?
When passed in water, SiF4 is hydrolysed to give soluble H2SiF6
Hydrolysis of silicon tetrachloride gives silicic acid
Silica is soluble in water
Silica is soluble in acids except hydrofluoric acid

Question 7 : Diamond behaves as an insulator because of __________.
Strong ionic bonds formed within its molecule restricting mobility of electrons
Strong covalent bonds formed within its molecule restricting mobility of electrons
Intermolecular bonding formed between adjacent atoms of the molecule
Intramolecular bonding formed within the molecule

Question 8 : ___________ occurs in the elemental state as diamond and graphite.
Tin
Germaniun
Carbon
Silicon

Question 1 : Commercial form of silicon can be obtained by __________.
Reduction of silicon dioxide with calcium II carbide in an electric furnace
Reduction of silicon dioxide with magnesium II chloride in an electric furnace
Oxidation of Silicon hydroxide with magnesium II hydroxide
Oxidation of silicon hydroxide with carbon in an electric furnace

Question 2 : _________ is used for making crucibles, as a lubricant in heavy machines and as pencil lead.
Tin
Graphite
Lead
Diamond

Question 3 : Tin is obtained by ___________.
Oxidation of oxides of tin with iron
Oxidation of oxides of tin with carbon
Reduction of oxides of tin with carbon
Reduction of oxides of tin with hydrogen

Question 4 : Germanium is obtained by ____________.
Oxidation of germanium dioxide with mercury
Reduction of germanium dioxide with tin
Reduction of germanium dioxide with carbon or hydrogen
The oxidation of germanium dioxide with copper

Hello,
Can you kindly explain fully the hybridization of magnesium disodium edetate complex

I one of these elements behave party as the alkaline metal as well as a halogen elements, a, fluorine b, hydrogen, helium, d, silicon

How does the temperature effect surface tension and viscosity

To determine the PH of acid solution like 0.1M HCL, 0.05 M HCL,0.025M HCL and 0.0125M HCL by using quinhydrone and calomel electrodes and to calculate their degree of dissociation and dissociation constant