Which of the following is a Bleaching agent?
Potassium chlorate
Hydrogen peroxide
Copper sulphate
Silver Nitrate
Correct Answer :
B. Hydrogen peroxide
Related Questions
Boiler scales' contain
calcium carbonate
magnesium bicarbonate
calcium sulphate
magnesium sulphate
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
Washing soda is
sodium hydroxide
sodium carbonate
sodium bicarbonate
potassium chloride
In the making of jewels, gold is usually mixed with
zinc
tin
copper
aluminium
Rusting is
an oxidation process
a reduction process
a physical change
an electro-chemical process
The alloy added in the preparation of steel contains
Fe and C
Mn and C
Fe and Mn
Fe, Mn and C
Compounds of nitrogen with metals are called
nitrates
nitrites
hyponitrates
nitrides
A burning substance which continues to burn in a jar of carbon dioxide is
zinc
red phosphorus
magnesium
sulphur
Vulcanisation was discovered by
Goodyear
Wohler
Baeyer
Perkin
A substance used as a fire-extinguisher under the trade name of Pyrene is
carbon dioxide
chloroform
carbon tetrachloride
bleaching powder
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
Graphite la a good conductor of electricity because
it is an allotrope of carbon
it gives CO2 on heating
it contains free electrons
it is oxidised to graphitic acid
Beri-beri is caused by deficiency of Vitamin
A
C
B12
B1
If people sleep in closed rooms where charcoal fire is burning, they die due to
carbon monoxide
carbon dioxide
methane
phosgene
Cholesterol is
a carbohydrate
a protein
a lipid
a hormone
Cupellation is used in the purification of
Lead
Tin
Silver
Gold
An important use of nitrous acid is in
the manufacture of explosives
the manufacture of dyes
refrigerators
the preparation of drugs
The name rubber was given by
Lavoisier
Priestley
Dalton
Avogadro
The most abundant constituent in air is
hydrogen
nitrogen
oxygen
noble gases
Which of the following represents a physical change?
sublimation
oxidation
reduction
decomposition
Marsh gas is
ethane
ethylene
acetylene
methane
A mixture of ethyl alcohol and water can be separated by
evaporation
sublimation
using a separating funnel
fractional distillation
Riboflavin deficiency causes
tongue inflammation
pellagra
night blindness
anaemia
Ethyl alcohol is
a deliquescent substance
an efflorescent substance
a hygroscopic substance
a dehydrating substance
The malarial parasite was discovered by
Sir Ronald Ross
Sir Francis Haig
Dr Jagadish Chandra Bose
Sir CV Raman
Lead pencils contain
white lead
graphite
red lead
coke
Which of the following types of water gives lather easily with soap?
Hard water
Heavy water
Soft water
Both (a) and (b)
Gases have
a definite shape but not volume
a definite volume and shape
a definite volume but not shape
neither definite volume nor shape
The flux added in the blast furnace is
Limestone
FeO
SiO2
MgO
High temperature thermometers use
sodium amalgam
an alloy of sodium and potassium
silver amalgam
calcium amalgam