Mild steel contains
iron with very low percentage of carbon
iron with high percentage of carbon
iron and chromium
iron and manganese
Correct Answer :
A. iron with very low percentage of carbon
Related Questions
Which of the following is not a chemical change?
Burning of magnesium ribbon in air
Distillation of water
Heating of cane sugar
Setting of cement
Refined petroleum is decolourised by
manganese dioxide
bauxite
animal charcoal
quicklime
Which among the following is a local anaesthetic?
Chloroform
Morphine
Streptomycin
Cocaine
A non-material kind of pollution is
land pollution
air pollution
noise pollution
water pollution
A burning substance which continues to burn in a jar of carbon dioxide is
zinc
red phosphorus
magnesium
sulphur
Proteins are polymerisation products of
aldehydes
alkenes
amino acids
alkynes
Lead soaps are used in
shaving creams
adhesive tapes
toilet powders
lubricants
LSD is
an anaesthetic
a psychedelic drug
an antipyretic
an antibiotic
Plaster of Paris
contracts while setting
expands while setting
is highly volatile
does not suffer any changes in volume while setting
Gold dissolves in aqua regia due to the formation of
chloro auric acid
auric chloride
gold nitrate
aurous chloride
Which is the 'odd man' in the following?
brass
common salt
cane sugar
water
Hydrogen gas has
a very sweet smell
a very pungent smell
an irritating smell
no smell at all
Isotopes differ in the number of
Protons
Neutrons
Electrons
Protons and electrons
The gas which has a faint sweet odour is
nitrogen
nitrous oxide
nitric oxide
nitrogen peroxide
Invert sugar is
sucrose
glucose
fructose
a mixture of glucose and fructose
The compound used in photography is
ammonium dichromate
copper Sulphate
magnesium Sulphate
sodium thiosulphate
The substance most abundantly found in sea water is
magnesium chloride
sodium chloride
calcium sulphate
potassium chloride
The modern system of symbols was evolved by
Dalton
Cavendish
Avogadro
Berzelius
What is 'oxygen mixture'?
A mixture of potassium nitrate and carbon
A mixture of ammonium chloride and sodium nitrate
A mixture of potassium chlorate and manganese dioxide
A mixture of ammonium nitrate and charcoal
Sulphur is readily soluble in
Water
Alcohol
Carbon-di-sulphide
Sodium chloride solution
Compounds containing only carbon and hydrogen are called
carbohydrates
carbides
hydrocarbons
carbonyls
The neutron was discovered by
Chadwick
Madam Curie
Becquerel
Aston
Which of the following metals is the best conductor of heat and electricity?
Aluminium
Silver
Copper
Magnesium
Suspended impurities in water are effectively removed by
adding milk of lime
filtering through sand
adding filter alum
chlorination
Grape sugar is another name for
glucose
fructose
sucrose
maltose
The compound of iron used in the manufacture of blue-black ink is
ferric chloride
ferric sulphate
ferric thiocyanate
ferrous sulphate
Argyrol used as eye ointment is a solution of
hydrogen peroxide
silver nitrate
tincture iodine
m-cresol
Smelling salt contains
ammonium chloride
ammonium carbonate
ammonium sulphate
potassium nitrate
Real gases tend to become ideal Under
low pressure and high temperature
low pressure and low temperature
high pressure and low temperature
high pressure and high temperature
Which of the following types of water gives lather easily with soap?
Hard water
Heavy water
Soft water
Both (a) and (b)