IIT JEE/IIT Chemistry Of Lighter Metals Sample Test,Sample questions

Question:
Alkali metals can be extracted from their salts by

1.reduction with carbon

2.solution of their halides

3.electrolysis of fused halides

4.reduction with aluminium.


Question:
Alkali metals do not exist in free state in mature because these aremetallic in naturehighly electronegative elements.

1.very reactive

2.very volatile

3.metallic in naturehighly electronegative

4.None of these


Question:
At high temperature nitrogen combines with calcium carbide to give

1.Calcium cyanide

2.Calcium cynamide

3.Calcium nitride

4.Calcium carbonate.


Question:
Beryllium shows diagonal relationship with.

1.Mg

2.Na

3.Al

4.B


Question:
Caustic soda is

1.Efflorescent

2.Deliquescent

3.Water repelling

4.Reducing agent.


Question:
Chlorophyll the main pigment responsible for absorption of light in plants contains.

1.Calcium

2.Magnesium

3.Sodium

4.Potassium


Question:
Froth floatation process is used for the concentration of.

1.Oxide ores

2.Sulphide ores

3.Chloride ores

4.Amalgams


Question:
Heating pyrites in air to remove sulphur is known as

1.Calcination

2.Roasting

3.Smelting

4.Bessemerisation.


Question:
In which of the following minerals aluminium is not present?

1.Cryolite

2.Mica

3.Feldspar

4.Fluorspar.


Question:
Molten sodium chloride conducts electricity due to the presence of

1.Free electrons

2.Free ions

3.Free molecules

4.Atoms of sodium and chlorine.


Question:
Potassium is stored under.

1.Water

2.Alcohol

3.Ammonia

4.Kerosene


Question:
Slag is formed by reaction between

1.impurities and coke

2.impurities and ore

3.impurities and flux

4.None of these


Question:
Smelting is generally carried out in

1.Reverberatory furnace

2.Muffle furnace

3.Bessemer converter

4.Blast furnace.


Question:
Sodium hydroxide solution reacts with phosphorus to give phosphine. To bring about this reaction we need

1.White phosphorus and dil. NaOH

2.White phosphorus and conc. NaOH

3.Red phosphorus and dil. NaOH

4.Red phosphorus and conc. NaOH.


Question:
Solvays process is used for the manufacture of.

1.sodium metal

2.washing soda

3.potassium chlorate

4.ammonia


Question:
The approximate percentage of gypsum in Portland cement is

1.10-15%

2.20-30%

3.30-40%

4.2-3%.


Question:
The ignition mixture in Alumino-thermite process contains a mixture of

1.Magnesium powder and barium peroxide

2.Magnesium powder aluminium and barium peroxide

3.Magnesium and aluminium powders

4.Magnesium and aluminium oxide.


Question:
The impurities associated with the ore after mining are collectively called.

1.flux

2.slag

3.minerals

4.gangue


Question:
The metallic luster exhibited by sodium is explained by

1.Diffusion of sodium ions

2.Oscillation of loose electrons

3.Excitation of free electrons

4.Excitation of free electrons


Question:
The most abundant element in earths crust is.

1.nitrogen

2.oxygen

3.iron

4.magnesium


Question:
The principal ore of aluminium is.

1.bauxite

2.corrundum

3.cryolite

4.Feldspar


Question:
The reason for floating of ore particles in concentration by froth floatation process is that

1.they are light

2.they are insoluble

3.they are charged

4.they are hydrophobic.


Question:
The salt which is least likely to be found in minerals is

1.sulphide

2.chloride

3.nitrate

4.None of these


Question:
The substance which is added to ore in order to remove impurities during smelting is called

1.slag

2.gangue

3.flux

4.matrix.


Question:
The wire of flash bulb is made up of

1.Cu

2.Ag

3.Mg

4.Ba.


Question:
When NaCl is dissolved in water the sodium ion is.

1.oxidised

2.reduced

3.hydrolysed

4.hydrated


Question:
Which element amongst the following has the highest boiling point?

1.Na

2.Mg

3.Ca

4.K.


Question:
Which of the following barium salts is soluble in water.

1.Barium sulphate

2.Barium carbonate

3.Barium nitrate

4.Barium phosphate


Question:
Which of the following is an ore of potassium?

1.Carnallite

2.Cryolite

3.Bauxite

4.Dolomite.


Question:
Which of the following is not an alkali metal?

1.Rb

2.Cs

3.Sb

4.Fr.


Question:
Which of the following metals can be extracted by smelting?.

1.Aluminium

2.Magnesium

3.Iron

4.Gold


Question:
Which of the following metals is always found in free state?

1.Copper

2.Mercury

3.Silver

4.Gold.


Question:
Which of the following metals is the most abundant in the earths crust?.

1.Mg

2.Na

3.Ca

4.K


Question:
Which of the following metals never occurs in free state in nature?.

1.Gold

2.Copper

3.Silver

4.Sodium


Question:
Which of the following methods is used for concentration of bauxite ore?

1.Levigation

2.Froth floatation

3.Magnetic separation

4.Leaching


Question:
Which of the following statements is correct regarding the slag obtained during the extraction of a metal like copper or iron?The slag is lighter and has lower melting point than the metalThe slag is heavier and has lower melting point than the metalThe slag is lighter and has higher melting point than the metalThe slag is heavier and has higher melting point than the metal.Which of the following statements is correct regarding the slag obtained during the extraction of a metal like copper or iron?

1.The slag is lighter and has lower melting point than the metal

2.The slag is heavier and has lower melting point than the metal

3.The slag is lighter and has higher melting point than the metal

4.The slag is heavier and has higher melting point than the metal.


Question:
Which of the following statements is correct?

1.All ores are minerals

2.All minerals are ores

3.Calcination is generally carried out in blast furnace

4.Oxide ores are concentrated by froth floatation process.


Question:
Zone refining process is used for the

1.Concentration of an ore

2.Reduction of a metal oxide

3.Purification of metals

4.Purification of an ore.


More MCQS

  1. IIT JEE Heat And Thermodynamics
  2. IIT JEE PHYSICS Current Electricity
  3. IIT JEE Fluids At Rest
  4. IIT JEE Description Of Motion In One Dimension part1
  5. IIT JEE Magnetic Effect Of Current And Magnetism
  6. IIT JEE Principles Of Communication set-1
  7. IIT JEE Principles Of Communication set-2
  8. IIT JEE Description Of Motion In One Dimension part2
  9. IIT JEE Electromagnetic Induction Electromagnetic Waves Part-1
  10. IIT JEE Circular Motion Centre Of Mass
  11. IIT JEE Elasticity
  12. IIT JEE Motion In Two And Three Dimensions part1
  13. IIT JEE Electromagnetic Induction Electromagnetic Waves Part 2
  14. Electrons And Dual Nature Of Matter And Radiations
  15. IIT Chemistry Of Lighter Metals
  16. IIT JEE Gravitation part1
  17. IIT JEE Gravitation part 2
  18. IIT JEE Laws Of Motion
  19. IIT JEE Alcohols And Phenols
  20. IIT JEE CHEMISTRY Biomolecules And Biological Processes
  21. IIT JEE CHEMISTRY Chemical Bonding And Molecular Structure Part-1
  22. IIT JEE Gaseous State
  23. IIT JEE Organic Compounds Containing Halogens
  24. IIT JEE Qualitative Inorganic Analysis
  25. IIT JEE Solid State
  26. IIT JEE Atoms Molecules And Chemical Arithmetic
  27. IIT JEE Aldehydes And Ketones
  28. IIT JEE Chemistry Of Non Metals
  29. IIT JEE Chemistry Of Heavier Metals
  30. IIT JEE Isomerism And Stereochemistry
  31. IIT JEE Organic Compounds Containing Nitrogen
  32. IIT JEE Environmental Chemistry set 1
  33. IIT JEE Chemical Energetics And Thermodynamics
  34. IIT JEE CHEMISTRY Chemical Bonding And Molecular Structure Part-2
  35. IIT JEE Environmental Chemistry set 2
  36. IIT JEE Solutions Mcq Questions Part-1
  37. IIT JEE Synthetic And Natural Polymers Part 1
  38. IIT JEE Synthetic And Natural Polymers Part 2
  39. IIT JEE Transition Metals Including Lanthanides
  40. IIT JEE Atomic Structure
  41. IIT JEE Solutions Mcq Questions part 2
  42. IIT JEE Carboxylic Acids And Their Derivatives
  43. IIT JEE Chemical Equilibrium
  44. IIT JEE Chemistry Of Hydrocarbons Part 1
  45. IIT JEE Chemistry Of Hydrocarbons Part 2
  46. IIT JEE Chemistry Of Representative Elements
  47. IIT JEE Fundamental Concepts Of Organic Chemistry
  48. IIT JEE Surfaces And Catalysis
  49. IIT JEE Redox Reactions And Electrochemistry
  50. Mechanical Engineering Engineering Mechanics Part 1
  51. Mechanical Engineering Engineering Mechanics Part-2
  52. Programming Computer Architecture
  53. IIT JEE Purification Of Organic Compounds .
  54. IIT JEE Nuclear Chemistry
  55. Basic Civil Engineering Questions and Answers
Search
R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!