General Science | Chemistry | Metals, Minerals, Ores : Properties and Uses
General Science | Chemistry | Metals, Minerals, Ores : Properties and Uses
1. Which one of the following pairs of metals constitutes the lightest metal and heaviest metal, respectively?
Lithium and Mercury
Lithium and Osmium
Aluminium and Osmium
Aluminium and Mercury
Correct Answer
Wrong Answer
2. Which is the hardest in the following?
Diamond
Glass
Quartz
Platinum
Correct Answer
Wrong Answer
3. Which of the following is the electron configuration of a metallic element?
2, 8
2, 8, 7
2, 8, 8
2, 8, 8, 2
Correct Answer
Wrong Answer
4. Which is the most reactive metal?
Sodium
Calcium
Iron
Potassium
Correct Answer
Wrong Answer
5. Which one of the following is the hardest metal?
Gold
Iron
Platinum
Tungsten
Correct Answer
Wrong Answer
6. Which one of the following materials is very hard and very ductile?
Carborundum
Tungsten
Cast iron
Nichrome
Correct Answer
Wrong Answer
7. The heaviest natural element is
Uranium
Mercury
Gold
Calcium
Correct Answer
Wrong Answer
8. Heaviest metal of the following is made of
Copper
Uranium
Aluminium
Silver
Correct Answer
Wrong Answer
9. Which of the following is lighter than water?
Aluminium
Sodium
Magnesium
Manganese
Correct Answer
Wrong Answer
10. The chemical structure of the pearl is
Calcium Carbonate
Calcium Carbonate & Magnesium Carbonate
Calcium Chloride
Calcium Sulphate
Correct Answer
Wrong Answer
11. The main constituents of pearl are
Calcium Carbonate and Magnesium Carbonate
Aragonite and Conchiolin
Ammonium Sulphate and Sodium Carbonate
Calcium Oxide and Ammonium Chloride
Correct Answer
Wrong Answer
12. Pearl is mainly constituted of
Calcium Oxalate
Calcium Sulphate
Calcium Carbonate
Calcium Oxide
Correct Answer
Wrong Answer
13. What are Rubies and Sapphires chemically known as?
Silicon Dioxide
Aluminium Oxide
Lead Tetroxide
Boron Nitride
Correct Answer
Wrong Answer
14. These days yellow lamps are frequently used as street light. Which one of the following is used in these lamps?
Sodium
Neon
Hydrogen
Nitrogen
Correct Answer
Wrong Answer
15. Sodium Vapour Lamp is usually used as street light, because
These are cheap
Light from this is monochromatic and will not split through water droplets
It is pleasing to the eyes
It is brightly illuminating
Correct Answer
Wrong Answer
16. The most commonly used substance in fluorescent tubes are
Sodium Oxide and Argon
Sodium Vapour and Neon
Mercury Vapour and Argon
Mercuric Oxide and Neon
Correct Answer
Wrong Answer
17. Which one of the following metals is accessed in the native state?
Aluminium
Gold
Chromium
Zinc
Correct Answer
Wrong Answer
18. Which one of the following is the correct sequence of the given substances in the decreasing order of their densities?
Steel > Mercury > Gold
Gold > Mercury > Steel
Steel > Gold > Mercury
Gold > Steel > Mercury
Correct Answer
Wrong Answer
19. Of how many carats is the pure gold?
22
24
28
20
Correct Answer
Wrong Answer
20. The softest mineral, Talc (Soapstone) is mainly
Manganese Silicate
Sodium Silicate
Sodium Phosphate
Magnesium Silicate
Correct Answer
Wrong Answer
21. The chemical name of limestone is
Calcium Carbonate
Magnesium Chloride
Sodium Chloride
Sodium Sulphate
Correct Answer
Wrong Answer
22. Chemically 'Plaster of Paris' is
Calcium Sulphate
Calcium Carbonate
Calcium Oxide
Calcium Oxalate
Correct Answer
Wrong Answer
23. Doctors, Artists and Sculptors use Calcium Sulphate which is popularly known as
Quick lime
Limestone
Bleaching powder
Plaster of Paris
Correct Answer
Wrong Answer
24. Monazite is an ore of
Zirconium
Thorium
Titanium
Iron
Correct Answer
Wrong Answer
25. Mica is a
Good conductor of heat and bad conductor of electricity
Bad conductor of both heat and electricity
Good conductor of heat and electricity both
Bad conductor of heat and good conductor of electricity
Correct Answer
Wrong Answer
26. In which of the following industries is mica used as a raw material?
Iron and steel
Toys
Glass and pottery
Electrical
Correct Answer
Wrong Answer
27. Which one of the following liquids is very good conductor of heat?
Mercury
Water
Ether
Benzene
Correct Answer
Wrong Answer
28. Which one of the following metals is liquid at room temperature?
Lead
Mercury
Nickel
Tin
Correct Answer
Wrong Answer
29. Which one of the following metals is liquid at ordinary temperature?
Lead
Nickel
Mercury
Tin
Correct Answer
Wrong Answer
30. Mercury is basically used in thermometer devices because its especiality is
High density
High liquidity
High circulation power
High specific heat
Correct Answer
Wrong Answer
31. Which of the following do not react with water at all?
Iron
Lead
Magnesium
None of the above
Correct Answer
Wrong Answer
32. There is no reaction when steam passes over
Aluminium
Copper
Carbon
Iron
Correct Answer
Wrong Answer
33. Iron is obtained from
Limestone
Pitch-blende
Monazite Sand
Hematite
Correct Answer
Wrong Answer
34. Which of the following materials has the highest electrical conductivity?
Diamond
Silver
Graphite
Wood
Correct Answer
Wrong Answer
35. Which of the following is mainly used for the production of Aluminium?
Hematite
Lignite
Bauxite
Magnetite
Correct Answer
Wrong Answer
36. Bauxite is an ore of which of the following metals?
Iron
Copper
Aluminium
Silver
Correct Answer
Wrong Answer
37. Bauxite is the ore of
Iron
Aluminium
Copper
Gold
Correct Answer
Wrong Answer
38. Aluminium metal is obtained from
Pitch blende
Graphite
Bauxite
Argentite
Correct Answer
Wrong Answer
39. Which one of the following statements is correct?
Liquid sodium is employed as a coolant in nuclear reactors
Calcium carbonate is an ingredient of toothpaste
Bordeaux mixture consists of sodium sulphate and lime
Zinc amalgams are used as a dental filling
