Inorganic Chemistry Answers

What happens when Prussian Blue (KFe[Fe(CN)6]) is added to the three solutions (3M NaOH, 3M HCl, 10% H2SO4) at room temperature? Please include the chemical equations.

What happens when each inorganic pigments is placed in each of the following solutions? Details below.

4 Inorganic Pigments: barium white, zinc yellow, chromium oxide green, prussian blue

3 Solutions at room temp: 3M NaOH, 3M HCl, 10% H2SO4

Please explain what happens to each pigment in each solution. Maybe even include a chemical equation?

is mechanical bond a weak bond? means what type of bonding is mechanical bonding?

Write born Haber cycle for BaO crystal ?

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

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

Question 16 : Which of these is not a component of lead-acid battery?
lead chloride
Tetraoxosulphate(VI) acid
lead oxide
spongy lead

Question 17 : Flourine has all but one of these properties
it is the strongest oxidising agent in the whole group
The oxidation state of is -1
The size is larger than the other halogens
It can oxidise all the other halide ions to their respective elements

Question 18 : Fluorine reacts with alkalies to yield------------
the hypohalite
the salt
the oxide
the acid

Question 19 : Nitrogen is obtained commercially from
coke
water vapour
rock
air

Question 20 : Which of these halogens does not form oxoacids ?
Flourine
Iodine
Bromine
Chlorine

Question 11 : PVC pipes are manufactured using
Flourine
Iodine
Bromine
Chlorine

Question 12 : Which of these statements is not true of halogens ?
They are only one electron short of the noble gas configuration
Fluorine is the strongest oxidising agent in the whole group
They form the cation X+
The bond in interhalogen compounds is polar

Question 13 : Compounds formed by the interaction of one halogen with other halogens are called ------------
pseudo halogens
polyhalogens
interhalogens
Polyhalides

Question 14 : Which of these halogen oxides is useful in the estimation of CO
Flourine
Chlorine
Iodine
Bromine

Question 15 : Which of these statements is not true of group V elements ?
antimony is a metalloid
Nitrogen exists as a diatomic molecule
Phosphorus exits both in gaseous and solid forms
bismuth is predominantly non- metallic in nature