Aluminium metal is extracted mainly from its ore:
1.Magnetite
2.Bauxite
3.Dolomite
4.Lime Pigment
 From which of the following ore, iron is extracted?
1. Lime stone
2.Pinch blend
3.Monazite sand
4.Haematite
 In the contest of an alternative sources of energy and practical bio-fuel ethanol can be obtained from-which of the following?
1.Potato
2.Paddy
3.Sugarcane
4.Wheat
 In the earth crust although the amount of aluminium is more than iron, however aluminium is costly than iron because:
1.Aluminium is more useful than iron
2.Aluminium forms more alloys than iron
3.Aluminium made equipments are more acceptable then iron equipments
4.The extraction processes of aluminium is more costly than extraction processes of iron
 The chemical utilized and employed as fixer in the photography is:
1.Sodium sulphate
2.Sodium thiosulphate
3.Ammonium per-sulphate
4.Borax
 The coating of thin layer of the zinc on the steel or iron utensils is called:
1.Heat feeding
2.Material plating
3.Lamination
4.Electro plating
 The employed catalyst in the production of ammonia through the Haber's process is:
1.Nickel
2.Iron
3.Platinum
4.Molybdenum
 The gaseous mixture of carbon monoxide and nitrogen is called:
1.Coal gas
2.Water gas
3. Producer gas
4.Natural gas
 To provide stern hardness which of the following is mixed up?
1.Carbon
2.Manganese
3.Silicon
4.Chromium
 What will be the change when iron get rusted?
1.Its weight is increased
2. Its weight is decreased
3.No changes take place
4.Its weight change
 Which of the following is the heaviest metal?
1.Silver
2.Gold
3.Mercury
4.Platinum
 Which of the following statement is true regarding the aluminium?
1. Aluminium hydroxide is amphoteric in nature
2.Aluminium exists in the Free State in nature
3.Nitric acid does not react with the aluminium
4.Hot and concentrated H2SO4 directly react with oxygen in which SO2 gas is released
 Who propounded the modern periodic law?
1.Newlands
2. Dobrenor
3.Mendeleev
4.Moseley
Blue Vitriol is:
1.Copper sulphate
2. Iron sulphate
3. Calcium sulphate
4.Sodium sulphate
For the installation of aluminium plants in India, the minimum required parameter other than bauxite is:
1.Coke
2.Electricity
3.Labour
4.Market
Galena is the ore of the metal:
1. Silver
2.Lead
3.Mercury
4. Aluminium
In L.P.G. the main component is:
1. Methane
2.Carbon dioxide
3.Butane
4.Sulphur dioxide
In the ocean-water which of the following salt has its maximum contribution in the salinity:
1.Calcium sulphate
2.Magnesium chloride
3.Magnesium iodide
4. Sodium chloride
The catalyst used in the lead chamber process is:
1.Oxide of the nitrogen
2.Platinum
3.Nickel
4.MnO2
Monozite is the ore of:
1.Zirconium
2.Thorium
3.Titanium
4.Iron
On what basis, the Mendeleev periodic table is classified?
1.Atomic mass
2.Atomic number
3. Atomic volume
4.Atomic density
The anti-knocking properties of any fuel exhibit:
1.Golden number
2.Natural number
3.Octane number
4.Mach number
The basis of the classification of the element in the modern periodic table is:
1.Atomic number
2.Atomic mass
3.Atomic volume
4.Atomic density
The catalyst employed in the production of H2S04 by the Contact process is:
1.The pieces (powder) of iron
2.The pieces (powder) of platinum
3.Oxide of nitrogen
4.Nickel metal
The chemical formula of the plaster of Paris is:
1.CaS04.5H2O
2.2CaS04. H2O
3.(CaS04)2. 2H2O Â Â Â
4. CaSO4. MgO
The chemical formula of washing soda is :
1.NaOH
2.Ca (OH)2
3.NaOHC03
4.Na2C03.10H2O
The concentration process of sulphide ores is:
1.Gravity separation process
2.Magnetic separation process
3.Forth floatation process
4.Physical process
The element radium was extracted from:
1.Lime stone
2.Pinch blend
3.Retile
4.Haematite Â
The extremely soft mineral, talk (soap stone) is mainly:
1.Manganese silicate
2.Sodium silicate
3.Sodium phosphate
4.Magnesium silicate
The main component of the natural gas is:
1.Methane
2.Ethane
3.Propane
4. Butane
The main ore of the mercury is:
1.Cinnabar
2.Pyrite
3.Bauxite
4.Pyrolusite
The percentage amount of carbon in the various types of coal is different, in which of the following its percentage would be the most:
1. Peat
2.Lignite
3.Bituminous
4.Anthracite
The process employed to remove the magnetic impurities from the Ores is called:
1.Gravity separation process
2.Magnetic separation process
3.Forth floatation process
4.Physical process
The sharp (bitter) smell of the substance which is found in the colouration or painting is:
1.CaOH
2.Al2Â (S04)3
3.CaC03
4.Zn3(P04)2
The substance employed and frequently used in the fluorescent tube is:
1.Sodium oxide and argon
2.Sodium vapour and neon
3.Mercury vapour and argon
4.Mercury oxide and argon
The substance which is useful for the photography:
1.Silver Nitrate
2.Silver bromide
3.Sulphuric acid
4.Citric acid
When the water vapour is poured on the red heated coke then the mixture of carbon monoxide and hydrogen gas is obtained which is:
1.Coal gas
2.Water gas
3.Producer gas
4.Bio gas
Which of the following element is mixed up for making steel which can resist high temperature and which has high level hardness and anti-frictional resistivity?
1. Aluminium
2.Chromium
3. Nickel
4.Tungsten
Which of the following has the maximum calorific value?
1.Hydrogen
2.Charcoal
3.Natural gas
4.Gasoline
Which of the following is called as the brown coal?
1.Peat
2.Lignite
3.Bituminous
4.Anthracite
Which of the following is the chemical name of the lime stone?
1.Calcium chloride
2.Calcium oxide
3.Calcium carbonate
4.Calcium sulphate
Which of the following is the lightest element? Â
1.Hydrogen
2.Helium
3.Mercury
4.Platinum
Which of the following is the lightest metal? Â
1.Magnesium
2. Aluminium
3.Platinum
4.Lithium
Which of the following is the most fundamental property of the element?
1.Atomic weight
2.Molecular weight
3.Atomic number
4.Atomic density
Which of the following metal is liquid at ordinary temperature?
1.Lead
2.Mercury
3.Nickel
4.Tin
Which of the following metal is the best conductor of the electricity?
1.Gold
2.Silver
3.Copper
4.Zinc
Which of the following metal is the heaviest?
1. Silver
2.Copper Â
3. Gold
4.Lead
Which of the following metal is used in the accumulator cell?
1.Copper
2. Lead
3. Aluminium
4.Zinc
Which of the following would produce minimum environmental pollution?
1.Diesel
2.Coal
3.Hydrogen
4.Kerosene