What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?
Cl2 & Na
Cl2 & H2
O2 & H2
Cl2, H2 & NaOH solution
Correct Answer :
D. Cl2, H2 & NaOH solution
Related Questions
Dechlorination of treated water is necessary to
Remove residual turbidity
Reduce the bacterial load on filter
Control taste and odour
Remove chlorinous taste
Starting material for the production of butadiene in India is
Naphthalene
Benzol
Ethyl alcohol
Phthalic anhydride
Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its
Poor oxidation stability and high gum forming tendency
Greater tendency of decomposition at elevated temperature
Hydrolysis tendency in presence of water
All (A), (B) and (C)
What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?
Cl2 & Na
Cl2 & H2
O2 & H2
Cl2, H2 & NaOH solution
Fats as compared to oils have
More unsaturated glycerides of fatty acids
Less unsaturated glycerides of fatty acids
Much higher reactivity to oxygen
Lower melting point
Unsaturated oils compared to saturated oils have
Lower melting point & higher reactivity to oxygen
Higher melting point & higher reactivity to oxygen
Lower melting point & lower reactivity to oxygen
Higher melting point & lower reactivity to oxygen
Flash point of most vegetable oils is about __________ °C.
50
100
200
300
Phenol formaldehyde resin is used as an adhesive in making
Laminates
Card boxes
Furniture
Books
Zeigler process
Produces high density polyethylene
Produces low density polyethylene
Uses no catalyst
Employs very high pressure
Average sulphur content in Indian pyrites is about __________ percent.
15
35
55
70
Gun powder, which is an explosive comprises of charcoal, sulphur and
Glycerine
Salt petre
Nitro glycerine
Dynamite
Economics of 'Solvay Process' depends upon the efficiency of
Carbonating tower
Ammonia recovery
Ammonia recovery and size of the plant
Ammoniation of salt solution
Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate
Is prone to thermal decomposition
Has high water solubility and is unstable
Is soluble in ammonium chloride and potassium chloride solution
All (A), (B) and (C)
The purpose of tanning in leather industry is to
Stiffen the leather
Smoothen the leather
Make it flexible
Impart water resistance
Nylon-6 is manufactured from
Caprolactam
Hexamethylene diamine and adipic acid
Hexamethylene diamine and Maleic anhydride
Hexamethylene diamine and Sebacic acid
Plaster of Paris is
CaSO4. ½H2O
Used for setting of broken bones
Both (A) and (B)
Same as gypsum
Ore concentration by froth floatation utilises the __________ of ore particles.
Density difference
Wetting characteristics
Terminal velocities
None of these
Dehydrogenation of Isopropanol produces
Propyl alcohol
Acetone
Trichloroethylene
Formaldehyde
Free alkali in a toilet soap is __________ that in a laundry shop.
Less than
More than
Same
None of these
Proximate analysis of coal determines its __________ content.
Moisture, ash, sulphur & volatile matter
Moisture & volatile matter
Moisture, sulphur, nitrogen & fixed carbon
None of these
Starting material for the commercial production of ethyl alcohol in India is
Rice
Molasses
Fruit of Mahua tree
Maize
Dense soda ash used in the manufacture of glass, is chemically represented by
Na2CO3
Na2CO3.10H2O
Na2CO3.H2O
Na2HCO3
Graphite is a/an
Electrical insulator
Allotrope of carbon
Moderator used in nuclear reactor
Both (B) and (C)
In the Solvay process, the product from the calciner is
Light soda ash
Dense soda ash
Sodium bicarbonate
Dehydrated soda ash
In industrial nomenclature, alcohol means
Butyl alcohol
Propyl alcohol
Ethanol
Methyl alcohol
The major use of butadiene is
As a plasticiser for unsaturated polyester
In the manufacture of synthetic rubber
As an anti-skinning agent in paint
None of these
Transparent soaps (e.g. Pears) are
Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency
Metallic soaps with frothing agent and free Stearic acid to achieve transparency
Metallic soaps with frothing agent from which glycerine has not been recovered
None of these
Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like
High cost
Fragile nature
Easy poisoning tendency
All (A), (B) and (C)
Highly porous refractory bricks are
Less susceptible to chemical attack by molten fluxes and gases etc
Very strong
Having very high thermal conductivity
None of these
Chrome tanning and vegetable tanning are done for
Light & heavy leather respectively
Heavy & light leather respectively
Both light & heavy leather
Neither light nor heavy leather