Which among the following is a local anaesthetic?
Chloroform
Morphine
Streptomycin
Cocaine
Correct Answer :
D. Cocaine
Related Questions
Which of the following biology laboratory?
Phenol
Benzaldehyde
Formaldehyde
Acetic acid
Which of the following metals is the best conductor of heat and electricity?
Aluminium
Silver
Copper
Magnesium
The most abundant constituent in air is
hydrogen
nitrogen
oxygen
noble gases
Calomel is
lead chloride
mercurous chloride
mercuric chloride
calcium sulphate
Ozone is an allotrope of Oxygen, containing ______ atom/s of oxygen per molecule instead of two.
three
four
one
five
Galvanising is coating Iron with
nickel
zinc
chromium
copper
Fructose is also called
dextrose
fruit sugar
beet sugar
blood sugar
In the making of jewels, gold is usually mixed with
zinc
tin
copper
aluminium
The substance preserved under water is
potassium
sodium
red phosphorus
white phosphorus
A non-metal which is a good conductor or heat and electricity is
iodine
sulphur
graphite
phosphorus
The flux added in the blast furnace is
Limestone
FeO
SiO2
MgO
Which of the following is a mixture?
Baking soda
Milk
Chloroform
Copper wire
The presence of dust particles in air serves
as a nucleus to condense water vapour resulting in rain
to maintain the average density of air
to minimise the inflammatory nature of oxygen
to protect the inhabitants of the earth from the effects of ultra violet rays.
The atomic number of an element represents
number of neutrons in the nucleus
number of protons and neutrons in the nucleus
the valency of the element
number of protons in the nucleus
Galvanised iron sheets are protected from rusting due to the presence of a layer of
lead
chromium
zinc
tin
The human body contains about
50% water
10% water
70% water
20% water
A non-metal which is a good conductor of electricity is
graphite
phosphorus
sulphur
iodine
Acute diabetes patients smell of
acetone
ether
ethyl alcohol
methyl alcohol
A metal which occurs 'free' in nature is
gold
zinc
tin
molybdenum
Suspended impurities in water are effectively removed by
adding milk of lime
filtering through sand
adding filter alum
chlorination
Which of the following cannot be used as fuel?
Gasoline
Kerosene
Sulphuric acid
Alcohol
The discoverer of chloroform was
Liebig
Pasteur
Bunsen
Erlenmeyer
An important use of nitrous acid is in
the manufacture of explosives
the manufacture of dyes
refrigerators
the preparation of drugs
The poisonous nature of carbon monoxide is due to
cutting off supply of oxygen
it™s being converted into carbon dioxide
its combination with haemoglobin of blood
its blocking of vocal chords
An antipyretic is a drug used
in the treatment of malaria
to relieve sleepiness
to induce sleep
to lower body temperature
Compounds of nitrogen with metals are called
nitrates
nitrites
hyponitrates
nitrides
Oil of winter green contains
acetone
ether
acetic acid
methyl salicylate
If people sleep in closed rooms where charcoal fire is burning, they die due to
carbon monoxide
carbon dioxide
methane
phosgene
In the mouth, starch is converted into ______ by the action of saliva.
sucrose
glucose
fructose
mannose
Annealing of glass is done in
a cupel
a long narrow chamber
an open furnace
a closed furnace