The sugar which is used in silvering mirrors is
sucrose
maltose
glucose
fructose
Correct Answer :
C. glucose
Related Questions
Nitrous oxide used as anaesthetic is usually mixed with
ethyl alcohol
chloroform
oxygen
methyl alcohol
In the common soda-acid fire extinguisher, the fire is put out by
acid fumes
sodium bicarbonate
carbon dioxide
sodium carbonate
The carbon cycle ensures that
the percentage of carbon dioxide in air is kept almost constant
air always contains a constant proportion of oxygen
sufficient amounts of carbohydrates are produced
the process of photosynthesis proceeds smoothly
The term 'nucleons' apples to
neutrons
protons
protons and neutrons
protons and electrons
A light alloy having high tensile strength is
German silver
solder
magnalium
bell metal
________ is left behind after distillation of petroleum.
Arsenic
Barium
Benzene
Bitumen
Temporary hardness is due to the presence of
calcium carbonate
calcium bicarbonate
magnesium sulphate
calcium sulphate
A metal which exhibits allotropy is
cobalt
tin
manganese
platinum
An important use of nitrous acid is in
the manufacture of explosives
the manufacture of dyes
refrigerators
the preparation of drugs
In surgical operation, the anaesthetic commonly used nowadays is
iodoform
chloroform
nitrous oxide-ether mixture
chloroform-nitrous oxide mixture
One of the ingredients of the paste on the side of a match box is
phosphorus pentaoxide
phosphorus trichloride
phosphorus trisulphide
phosphorus trioxide
The flux added in the blast furnace is
Limestone
FeO
SiO2
MgO
The substance most abundantly found in sea water is
magnesium chloride
sodium chloride
calcium sulphate
potassium chloride
When ants bite, they inject
glacial acetic acid
methanol
formic acid
stearic acid
The science which deals with the chemistry of life processes is known as
electrochemistry
physical chemistry
biochemistry
tinctorial chemistry
Colour blindness is
a congenital disease
a communicable disease
an acquired disease
a contagious disease
The vitamin that is found in citrus fruits such as lemon and orange is
vitamin C
vitamin B2
vitamin A
vitamin E
Heated saw dust catches fire when a drop of concentrated nitric acid is added to it. This is due to
dehydration
oxidation
reduction
dehydrogenation
Marble is
calcium carbonate
sodium carbonate
magnesium sulphate
ferric chloride
A form of carbon which is a good lubricant is
diamond
coke
graphite
charcoal
If people sleep in closed rooms where charcoal fire is burning, they die due to
carbon monoxide
carbon dioxide
methane
phosgene
The Combined Gas Law equation is
P1V1T1 = P2 V2 T2
P1V1T2 = P2V2T1
P = P1 + P2 + P3
C =
The Long Form of the Periodic Table is based on
atomic number
valency
atomic mass
atomic radius
Which of the following la a very good supporter of combustion?
Carbon monoxide
Oxygen
Nitrogen
Hydrogen
The rate of setting of cement is slowed down by the addition of
quicklime
gypsum
soda lime
bleaching powder
According to the modern Periodic Law, the properties of elements are periodic functions of their
valency
atomic mass
number of neutrons
atomic number
Copper is purified by
poling
tempering
calcination
galvanising
Which one of the following is used for dry cleaning?
Kerosene oil
Diesel oil
Lubricating oil
Petroleum ether
The ore of iron is
Dolomite
Magnetite
Bauxite
Anglesite
Invar, used for making pendulums is an alloy of steel with
tungsten
nickel
manganese
chromium