Nylon is made from
terephthalic acid and ethylene glycol
hexamethylene diamine and adipic acid
cellulose nitrate
cellulose acetate
Correct Answer :
B. hexamethylene diamine and adipic acid
Related Questions
The oldest known organic compound is
urea
methane
acetic acid
benzene
Iodine in alcohol is known as
quick lime
tincture iodine
rectified spirit
None of these
Compounds containing only carbon and hydrogen are called
carbohydrates
carbides
hydrocarbons
carbonyls
Flint glass contains
potassium and lead silicates
zinc and barium borosilicates
potassium and calcium silicates
sodium and calcium silicates
Sulphur is readily soluble in
Water
Alcohol
Carbon-di-sulphide
Sodium chloride solution
CAN is used as (Calcium Ammonium Nitrate)
an explosive
a fertilizer
a dye
a bleaching agent
The process of heating steel to bright red heat and cooling suddenly by plunging it into water is known as
annealing
hardening
quenching
tempering
The compound or nitrogen used in dry cells is
ammonia
ammonium nitrate
ammonium chloride
ammonium nitrite
The soaps used in shaving cream are
calcium soaps
lead soaps
soft soaps
hard soaps
According to the modern Periodic Law, the properties of elements are periodic functions of their
valency
atomic mass
number of neutrons
atomic number
Alum is used
as an analgesic
in the purification of water
as a fertilizer
as a disinfectant
Clark's method for removal of temporary hardness in water uses
calcium hydroxide
washing soda
calcium chloride
zeolite
Solid carbon dioxide (Dry ice) is also known as
Thiokol
Drikold
Perhydrol
Mannitol
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
Which of the following is not a chemical change?
Rusting of iron
Burning of magnesium
Sublimation of iodine
Electrolysis of water
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
The Combined Gas Law equation is
P1V1T1 = P2 V2 T2
P1V1T2 = P2V2T1
P = P1 + P2 + P3
C =
The rate of setting of cement is slowed down by the addition of
quicklime
gypsum
soda lime
bleaching powder
The gas which has a faint sweet odour is
nitrogen
nitrous oxide
nitric oxide
nitrogen peroxide
The human body contains about
50% water
10% water
70% water
20% water
Consider the following statements: Hard water is not suitable for
1) drinking
2) washing clothes with soap
3) use in boilers
4) irrigating crops
Which of these statements are correct?
1 and 3
2 and 3
1, 2 and 4
1, 2, 3 and 4
Which or the following is not a constituent or gun powder?
Ammonium nitrate
Nitre
Charcoal powder
Sulphur
The compounds produced by plants in the process of photosynthesis are
carbohydrates
proteins
salts
fats
Rusting is
an oxidation process
a reduction process
a physical change
an electro-chemical process
Even as early as 3000 BC glass was known to the
Europeans
Egyptians
Asians
Americans
Galvanising is the process of coating
iron with zinc
zinc with iron
copper with silver
silver with gold
Invar, used for making pendulums is an alloy of steel with
tungsten
nickel
manganese
chromium
Which of the following cannot be used for the preparation of soap?
oleic acid
acetic acid
palmitic acid
stearic acid
Two or more entirely different compounds having the same molecular formula are known as
isobars
isotopes
isomorphs
isomers
Triple Antigen treatment for children is to ward off
whooping cough
tetanus
diphtheria
All the three