Which of the following is called 'the King of Chemicals?
Nitric acid
Hydrochloric acid
Silver nitrate
Sulphuric acid
Correct Answer :
D. Sulphuric acid
Related Questions
Hard water does not lather well with soap because
it contains carbonates of calcium and magnesium
it contains sodium chloride
it is highly coloured
it contains suspended impurities
Harmful bacteria in drinking water cannot be destroyed by
chlorination
boiling
adding caustic soda
ozonisation
Annealing of glass is carried out by
rapid cooling
rapid heating
slow cooling
slow heating
Washing soda is
sodium hydroxide
sodium carbonate
sodium bicarbonate
potassium chloride
Which of the following process involves removal of the elements of water?
Hydrolysis
Hydrogenation
Dehydration
Dehydrogenation
A drug that is usually administered for malaria is
sulphanilamide
quinine
methicillin
novocaine
Iodine in alcohol is known as
quick lime
tincture iodine
rectified spirit
None of these
Which among the following is a local anaesthetic?
Chloroform
Morphine
Streptomycin
Cocaine
Rooms in places infected by plague are disinfected using
bleaching powder
iodoform
sulphur dioxide
chlorine
The substance preserved under water is
potassium
sodium
red phosphorus
white phosphorus
Which of the following is not a food material?
silicate
protein
fat
carbohydrate
According to the modern Periodic Law, the properties of elements are periodic functions of their
valency
atomic mass
number of neutrons
atomic number
Radium was isolated from
galena
dolomite
sylvine
pitchblende
Which of the following cannot be used for the preparation of soap?
oleic acid
acetic acid
palmitic acid
stearic acid
In surgical operation, the anaesthetic commonly used nowadays is
iodoform
chloroform
nitrous oxide-ether mixture
chloroform-nitrous oxide mixture
If people sleep in closed rooms where charcoal fire is burning, they die due to
carbon monoxide
carbon dioxide
methane
phosgene
The process of heating steel to bright red heat and cooling suddenly by plunging it into water is known as
annealing
hardening
quenching
tempering
Which of the following elements is not required for the healthy growth of plants?
Nitrogen
Phosphorus
Potassium
Mercury
Which of the following biology laboratory?
Phenol
Benzaldehyde
Formaldehyde
Acetic acid
Which of the following is used in fuel to propel rockets?
Petrol
Kerosene
Hydrazine
Alcohol
Which or the following is not a constituent or gun powder?
Ammonium nitrate
Nitre
Charcoal powder
Sulphur
A hormone which contains iodine is
adrenalin
glucagon
epinephrin
thyroxin
The fertilizer which has the largest percentage of nitrogen is
urea
ammonium nitrate
ammonium sulphate
calcium cyanamide
The compound which is both an antiseptic and a disinfectant is
phenol
iodoform
bleaching powder
blue vitriol
Which of the following represents a physical change?
sublimation
oxidation
reduction
decomposition
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
The gas which has a faint sweet odour is
nitrogen
nitrous oxide
nitric oxide
nitrogen peroxide
The non-metal which has a shining appearance is
sulphur
phosphorus
iodine
bromine
Nylon is made from
terephthalic acid and ethylene glycol
hexamethylene diamine and adipic acid
cellulose nitrate
cellulose acetate
Cupellation is used in the purification of
Lead
Tin
Silver
Gold