The drug used in contraceptives is
Sulfadiazine
Mestranol
Methyl salicylate
Penicillin
Correct Answer :
B. Mestranol
Related Questions
The most reactive allotropic form of phosphorus is __________ phosphorus.
Red
Yellow
Violet
Black
Vulcanisation of rubber
Decreases its tensile strength
Increases its ozone & oxygen reactivity
Increases its oil & solvent resistance
Converts its plasticity into elasticity
Hydrogenation of vegetable oils is a/an __________ reaction.
Endothermic
Autocatalytic
Exothermic
Homogenous
Sucrose content in the raw juice extracted from sugar cane is about __________ percent.
1 - 2
15 - 20
50 - 60
80 - 85
Triple superphosphate is manufactured by reacting
Phosphate rock with phosphoric acid
Phosphate rock with sulphuric acid
Phosphate rock with nitric acid
Ammonium phosphate with phosphoric acid
Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda?
Diaphragm electrolytic cell process
Mercury electrolytic cell process
Lime-soda process
None of these
Le-Blanc process is a primitive process for the manufacture of
Caustic soda
Soda ash
Bromine from sea water
Hydrochloric acid
Which is the most suitable dye for synthetic fibres?
Acid dye
Azoic dye
Pigment dye
Mordant dye
__________ process is used for producing soda ash.
Chamber
Chance
Tromp
Solvay
__________ glass is used for the manufacture of optical glass.
Pyrex
Soda
Flint
Crooke's
Main constituents of Portland cement are calcium aluminate and
Gypsum
Silicates
Sodium silicate
Carbonates
Reaction of an alcohol with organic acid is called the __________ reaction.
Saponification
Esterification
Neutralisation
Acidification
Sizing material is incorporated in paper to
Impart resistance to penetration by liquids
Increase its thickness
Increase its flexibility & opacity
Increase its brightness
Most commonly used rubber vulcanising agent is
Sulphur
Bromine
Platinum
Alumina
Tall oil obtained as a by-product from the black liquor recovery is
A black, sticky & viscous liquid
Used in the manufacture of greases, emulsions & soaps
Composed mainly of rosin & fatty acids
All (A), (B) & (C)
Which of the following is not present in bagasse fibre?
Cellulose
Lignin
Pentogens
None of these
Viscose rayon is chemically
Cellulose nitrate
Regenerated cellulose nitrate
Cellulose acetate
Regenerated cellulose acetate
Production of one ton of cement requires about __________ tons of limestone.
0.6
1.2
2.2
3.8
Permanent hardness of water can be removed by
Boiling
Adding Ca(OH)2
Boiling it with Na2CO3
None of these
Isopropyl benzene produced by alkylation of benzene with propylene is known as
Neoprene
Cumene
Gelatin
Mercaptans
Cement mainly contains
CaO, SiO2, Al2O3
MgO, SiO2, K2O
Al2O3, MgO, Fe2O3
CaO, MgO, K2O
Pick out the wrong statement.
Cold rubber (SBR) is superior as compared to hot rubber (SBR)
Polymerisation temperature can modify the properties of SBR
Production of cold SBR employs lower pressure as compared to that of hot SBR
None of these
Catalyst used during the manufacture of 'Vanaspati Ghee' is
Zinc
Nickel
Platinum
Copper
Chemical formula of oleum is
H2SO3
H2SO4
H2S2O7
H2SO7
The function of gypsum addition during cement making is to
Increase the density of cement
Decrease the cement setting rate
Both (A) and (B)
Neither (A) nor (B)
Teflon is
Phenol formaldehyde
An inorganic polymer
Poly tetra-fluoro-ethylene (P.T.F.E.)
A monomer
Polythene is a/an __________ polymerisation product.
Addition
Condensation
Thermosetting
None of these
Naphthols are derivates of
Methyl amine
Naphthalene
Phenol
Xylene
Grignard reagent is chemically known as
Ethyl magnesium chloride
Methyl magnesium chloride
Dichlorophenol
Monochloroacetic acid
__________ is produced by the dehydrogenation of ethyl benzene.
Styrene
Ethyl alcohol
Cumene
Phenol