Pick out the wrong statement.
Catalytic hydrogenation of carbon monoxide produces methyl alcohol
In nylon-6, the number 6 represents the total number of carbon atoms in the ring
Raw materials for DDT manufacture are benzene and chlorine
Ethanolamines are produced by using ammonia and ethylene oxide as raw material
Correct Answer :
C. Raw materials for DDT manufacture are benzene and chlorine
Related Questions
Baking soda is chemically represented by
Na2CO3
NaHCO3
Na2CO3.H2O
Na2CO3.10H2O
Enzymes are organic catalysts used in the __________ reactions.
Chemical
Biochemical
Photochemical
Electrochemical
Which of the following is the purest form of water out of the following?
Underground water
Rain water
Well water
Lake water
Flux addition during smelting of ore is done to
Remove impurities/gangue
Enhance rate of reaction
Accelerate reduction of ore
Separate slag from metal
Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used
As a lubricant
As a rust preventive
In hard water for cleaning of cloth
As a foam depressant in distillation column
Titanium dioxide is a/an __________ colour pigment.
White
Black
Yellow
Blue
Prussian blue is chemically represented by
FeO.TiO2
Ca SO4 . 2H2O
Fe4 [Fe (CN6)3]
AlF3 . 3NaF
Celluloid is chemically
Cellulose acetate
Regenerated cellulose
Cellulose nitrate
Cellulose acetate butyrate
Penicillin, an antibiotic drug was discovered by
Alexander
Flaming
Doctor Zhivago
None of these
Metallic soap is __________ salt of fatty acids.
Sodium
Potassium
Both sodium & potassium
Aluminium or calcium
Cumene (isopropyl benzene) is made by
Oxidation of naphthalene
Propylene alkylation of benzene
Polymerisation of a mixture of benzene & propylene
None of these
Fermentator temperature during production of alcohol from molasses is around __________ °C.
5
30
130
300
Pure rectified spirit contains about __________ percent alcohol.
45
70
95
99.5
Liquor poisoning generally occurs due to the presence of __________ in it.
Ethyl alcohol
Impurities
Methyl alcohol
Carbonic acid
Bleaching action of bleaching powder is due to its __________ properties.
Reducing
Oxidising
Disinfecting
None of these
Enzymes are
Proteins with high molecular weight (around 10,000)
Derived from living organisms
Catalyst for temperature sensitive reactions
All (A), (B) and (C)
Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?
Oxidation of Na+ ions
Oxidation of Cl- ions
Reduction of Na+ ions
Reduction of Cl- ions
Oil produced by solvent extraction
Has low free fatty acid content
Is odourless
Both (A) & (B)
Neither (A) nor (B)
The type of high refractive index glass used in optical instruments is __________ glass.
Pyrex
Flint
Crookes
None of these
Hydrazine is used in water treatment for the removal of
Colloidal impurities
Dissolved oxygen
Turbidity
Chlorinous taste
Naphthols are derivates of
Methyl amine
Naphthalene
Phenol
Xylene
Dehydrogenation of ethyl benzene produces
Styrene
Naphthalene
Phenol
Benzoic acid
The purpose of adding Na2CO3 to water of low alkalinity is to
Permit the use of alum as a coagulant
Increase the softening capacity of zeolite
Facilitate easy regeneration of zeolite
All (A), (B) and (C)
The noble gas which occurs most abundantly in the atmosphere is
Helium
Neon
Krypton
Argon
CaSO4 . ½H2O is known as
Blue vitriol
Plaster of Paris
Gypsum
Zeolite
Fumigant insecticides
Kill insects, when they eat it
Emit poisonous vapour
Are absorbed throughout the plant
None of these
Which of the following is not an insecticide?
Hydrocyanic acid
Nicotine
Sodium fluoride
Hexane
P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
Bakelite
Neoprene
Teflon
Nylon-66
The drug used in contraceptives is
Sulfadiazine
Mestranol
Methyl salicylate
Penicillin
Styrene is produced from ethyl benzene by the process of
Dehydrogenation
Oxidation
Alkylation
Dehydration