Two or more entirely different compounds having the same molecular formula are known as
isobars
isotopes
isomorphs
isomers
Correct Answer :
D. isomers
Related Questions
Dust particles in the air of large industrial cities are removed by
Sedimentation
Electrophoresis
Tyndall effect
Brownian movement
Rooms in places infected by plague are disinfected using
bleaching powder
iodoform
sulphur dioxide
chlorine
Stainless steel contains steel and
manganese
vanadium
nickel
chromium
The science which deals with the chemistry of life processes is known as
electrochemistry
physical chemistry
biochemistry
tinctorial chemistry
The Combined Gas Law equation is
P1V1T1 = P2 V2 T2
P1V1T2 = P2V2T1
P = P1 + P2 + P3
C =
Beri-beri is caused by deficiency of Vitamin
A
C
B12
B1
The pure at form of iron is
wrought iron
steel
pig iron
nickel steel
A substance used as a fire-extinguisher under the trade name of Pyrene is
carbon dioxide
chloroform
carbon tetrachloride
bleaching powder
Leakage in Liquefied Petroleum Gas (LPG) cylinders is easily detected by adding
mercaptans
propylene
carbon disulphide
phosgene
Which of the following elements is not required for the healthy growth of plants?
Nitrogen
Phosphorus
Potassium
Mercury
The compound which is both an antiseptic and a disinfectant is
phenol
iodoform
bleaching powder
blue vitriol
The artificial silk produced from cellulose is
Polyethylene
Nylon
Terylene
Rayon
The gas evolved when ammonium nitrate is heated is
nitrogen
nitric oxide
nitrogen peroxide
nitrous oxide
Iodine in alcohol is known as
quick lime
tincture iodine
rectified spirit
None of these
The soaps used in shaving cream are
calcium soaps
lead soaps
soft soaps
hard soaps
Which of the following is a regenerated fibre?
Terylene
Rayon
Nylon
Silk
Which is the 'odd man' in the following?
brass
common salt
cane sugar
water
Heated saw dust catches fire when a drop of concentrated nitric acid is added to it. This is due to
dehydration
oxidation
reduction
dehydrogenation
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
A compound used both as a fungicide and as a disinfectant is
chlorine
carbon monoxide
sulphur dioxide
o-cresol
Which or the following electrolysis?
Aluminium
Copper
Zinc
Iron
Brine is a solution of
sodium chloride in water
iodine in alcohol
sulphur in carbon disulphide
Potassium iodide in water
Which among the following gases present in the air discolours brass nameplates?
Hydrogen Sulphide
Nitrogen
Carbon-di-oxide
Oxygen
A non-metal which is a good conductor of electricity is
graphite
phosphorus
sulphur
iodine
The alloy added in the preparation of steel contains
Fe and C
Mn and C
Fe and Mn
Fe, Mn and C
Suspended impurities in water are effectively removed by
adding milk of lime
filtering through sand
adding filter alum
chlorination
Copper is purified by
poling
tempering
calcination
galvanising
Chloroform used as anaesthetic should be preserved In the dark in tightly stoppered bottles because otherwise
it becomes coloured
it gets evaporated in air
it gets oxidised to phosgene
it gets decomposed to chloropicrin
Harmful bacteria in drinking water cannot be destroyed by
chlorination
boiling
adding caustic soda
ozonisation
Which of the following is used in fuel to propel rockets?
Petrol
Kerosene
Hydrazine
Alcohol