Inorganic Chemistry Answers

Question 13 : Which of these is not a raw material for the cement manufacture?
lime
silica
Silicate
alumina

Question 14 : When carbon is linked to elements of lower or approximately the same electronegativity,the binary compounds formed are termed
hydroxides
halides
carbides
oxides

Question 15 : Which of the group V elements give only one oxidation state?
bismouth
phosphorus
nitrogen
lead

Question 16 : Which of these is true of interstitial carbide?
they are non stoichiometric compound
they are soluble compounds
They are binary compounds
they are amorphous compounds

Question 9 : Zeolites is used in water as----------
softener
purifiers
disinfectants
oxidants

Question 10 : Which of these is an example of covalent carbides?
TiC
tetrachloro silicon
dicloro silicon
SiC

Question 11 : Which of these is not a carbide?
dative
covalent
interstitial
ionic

Question 12 : Silicates are salts of----
silicon tetraoxide
Silica gel
tetrachloro silicon
Crystaamite

Question 5 : The purest form of silicon dioxide is----
cristobalite
silibolite
rock crystal
silicates

Question 6 : The heavier elements of group IV functions as------
lewis acid
Lowry base
lewis base
Lowry acid

Question 7 : Which of these is not an interstitial carbide?
tungsten carbide
titanium carbide
Vanadium carbide
boron carbide

Question 8 : One of these is not a form of silica
cristobalite
tridymite
Flint
Freons

Question 1 : Mixed chloroflorocarbons are known as ---------------
teflon
halides
Freons
carbenes

Question 2 : The following are crystaline forms of silica, except------------
tridymite
quartz
cristobalite
Crystaamite

Question 3 : Aqua regia is a mixture of Nitric acid and----------------
concentrated Hydrochloric acid
conc sulphuric acid
limewater
water

Question 4 : Solid CO2 is known as----
dry ice
hydrocarbon
Teflon
carbene

Question 17 : Which of the following is prepared by haber process?
phosphorus
bismouthine
Ammonia
nitric acid

Question 18 : Which of the following is the most abundant uncombined element accessible to man?
N
He
O
H

Question 19 : One of these is not a raw material for the cement manufacture?
lime
alumina
silica
silicate

Question 20 : Which of the following is used as a rocket fuel?
Ammonia
,hydrazine
hydrazoic acid
phosphine

Question 13 : Which form of phosphorous is most reactive?
red
white
brown
black

Question 14 : Which of these group V elements form the most stable pentahalides
B
P
As
Sb

Question 15 : Which of the group V element forms alloys with metals?
Ar
Bi
Sb
N

Question 16 : Which of the following does not function as lewis acid?
Bi
N
Ar
Sb

Question 9 : Glass is produced from mixture of silicates mainly of
K and Ca
Na and Al
K and Al
Na and Ca

Question 10 : Which of these will give a positive brown ring test?
nitric oxide
nitric dioxide
nitrogen oxide
dinitrogen tetraoxide

Question 11 : Which of these compounds is used in toothpastes as a source of fluoride ion to harden dental enamel
stannous fluoride
germanium fluoride
carbon tetra fluoride
Silicate fluoride

Question 12 : Silicones are a group of-------------
Organosilicon polymers
tetrachloro silicate polymer
silicon dioxide
organosilicates

Question 5 : Which of the following is used to decolourize bottle glasses
Sodium arsenate
arsenic acid
arsenic hydride
arsenic oxide

Question 6 : The purest form of silicon dioxide is-----
rock crystal
cristobalite
silicates
silibolite

Question 7 : Which of the following trihalides of nitrogen is stable?
chloride
bromide
floride
iodide

Question 8 : Which of the following is used in baking powder and toothpastes?
calcium phosphate
Calcium chloride
sodium tripolyphosphate
nitric acid

Question 1 : Which of the following is an oxidizing agent?
Carbon monoxide
lead dioxide
gemenium oxide
tin dioxide

Question 2 : The following are crystaline forms of silica except
quartz
cristobalite
tridymite
crystaamite

Question 3 : Which of the following is used in matches and fireworks?
nitrogen
arsenic
bismuth
red phosphorous

Question 4 : Which of the group V elements form the pp- pp multiple bonds?
Bi
N
Ar
Sb

Question 17 : Diamond behaves as an insulator because------
It is used as an jewelry
It is made of carbon
It is a solid
It does not have mobile electrons

Question 18 : Which of these elements of group IV can form compounds easily in +2 oxidation state
C
Pb
Ge
Si

Question 19 : Which of these is not a component of lead-acid battery?
spongy lead
lead chloride
tetrehydrooxsulphate(VI) aci
lead oxide

Question 20 : An example of amorphous form of carbon is-----
Graphite
Carbon monoxide
LampblacK
Diamond