1. Cow milk is a rich source of —
(A) Vitamin A
(B) Vitamin B1
(C) Vitamin C
(D) Vitamin D
2. The element found in the surface of the Moon is —
(A) Tin
(B) Tungsten
(C) Tantalum
(D) Titanium
3. The average salinity of sea water is —
(A) 2%
(B) 3%
(C) 2.5%
(D) 3.5%
4. Which of the following is the most stable element?
(A) Uranium
(B) Hydrogen
(C) Oxygen
(D) Lead
5. Find the odd one ?
(A) Marble
(B) Chalk
(C) Lime Stone
(D) Slaked Lime
6. Diamond is harder than graphite because of —
(A) Difference of layers of atoms
(B) Tetrahedral structure of diamonds
(C) Difference of crystaline structures
(D) None of these
7. A super conductor is characterised by —
(A) Zero permeability
(B) Low permeability
(C) High permeability
(D) Infinite permeability
8. Of the various forms of carbon, which one is used for absorption purpose ?
(A) Diamond
(B) Graphite
(C) Coke
(D) Wood Charcoal
9. The main constituents of Pearl are —
(A) Calcium Carbonate, Magnesium Carbonate
(B) Calcium oxide, Ammonium Chloride
(C) Argonite , Chonchiolin
(D) Ammonium Sulphate, Sodium Carbonate
10. An element that does not occur in nature but can be produced artificially is —
(A) Thorium
(B) Radium
(C) Plutonium
(D) Uranium
11. The inert gas which is substituted for nitrogen in the air, used by deep sea drivers for breathing is —
(A) Helium
(B) Argon
(C) Krypton
(D) Xenon
12. The group of metals Fe, Co, Ni may be best called as —
(A) Alkali metals
(B) Rare metals
(C) Main group metals
(D) Transition metals
13. Which of the following characters is not shown by hydrogen —
(A) It burns in air to form water
(B) It supports combustion
(C) It combines with almost all metals forming hydrides
(D) It readily combines with fluorine and chlorine
14. Which of the following elements is obtained from sea weeds ?
(A) Argon
(B) Sulphur
(C) Vanadium
(D) Iodine
15. The metallic constituents of hard water are —
(A) Magnesium, Calcium and tin
(B) Iron, tin and calcium
(C) Calcium, magnesium and iron
(D) Magnesium, tin and iron
16. The property of a substance to absorb moisture from the air on exposure is called —
(A) Osmosis
(B) Desiccation
(C) Efflorescence
(D) Deliquescene
17. Brass gets discoloured in air due to the presence of which gas in air —
(A) Carbon dioxide
(B) Oxygen
(C) Hydrogen Sulphide
(D) Nitrogen
18. Quartz crystals normally used in quartz clocks etc. is chemically —
(A) Sodium Silicate
(B) Silicon dioxide
(C) Germenium dioxide
(D) A mixture of (B) & (C)
19. Bell Metal is an alloy of —
(A) Brass and Nickel
(B) Zinc and Copper
(C) Tin and Copper
(D) Nickel and Copper
20. The high temperature superconductors are —
(A) Metal alloys
(B) Ceramic oxides
(C) Inorganic polymers
(D) Pure rare earth metals
21. The ingredients of Gun metal are —
(A) Iron, tin
(B) Copper, tin
(C) Iron, brass, tin
(D) Iron, zinc, titanium
22. The gas usually causing explosions in coal mines is —
(A) Hydrogen
(B) Carbon monoxide
(C) Air
(D) Methane
23. Cotton fibers are made of —
(A) cellulose
(B) starch
(C) proteins
(D) fats
24. Which of the following ores does not contain iron?
(A) Haematite
(B) Magnetite
(C) Limonite
(D) Cassiterite
25. Nuclear fission is caused by the impact of —
(A) Proton
(B) Electron
(C) Neutron
(D) (A) & (b)
Answers: 1. (B) 2. (D) 3. (D) 4. (D) 5. (D)6. (C) 7. (A) 8. (D) 9. (A) 10. (C) 11. (A) 12. (D)
(A) Vitamin A
(B) Vitamin B1
(C) Vitamin C
(D) Vitamin D
2. The element found in the surface of the Moon is —
(A) Tin
(B) Tungsten
(C) Tantalum
(D) Titanium
3. The average salinity of sea water is —
(A) 2%
(B) 3%
(C) 2.5%
(D) 3.5%
4. Which of the following is the most stable element?
(A) Uranium
(B) Hydrogen
(C) Oxygen
(D) Lead
5. Find the odd one ?
(A) Marble
(B) Chalk
(C) Lime Stone
(D) Slaked Lime
6. Diamond is harder than graphite because of —
(A) Difference of layers of atoms
(B) Tetrahedral structure of diamonds
(C) Difference of crystaline structures
(D) None of these
7. A super conductor is characterised by —
(A) Zero permeability
(B) Low permeability
(C) High permeability
(D) Infinite permeability
8. Of the various forms of carbon, which one is used for absorption purpose ?
(A) Diamond
(B) Graphite
(C) Coke
(D) Wood Charcoal
9. The main constituents of Pearl are —
(A) Calcium Carbonate, Magnesium Carbonate
(B) Calcium oxide, Ammonium Chloride
(C) Argonite , Chonchiolin
(D) Ammonium Sulphate, Sodium Carbonate
10. An element that does not occur in nature but can be produced artificially is —
(A) Thorium
(B) Radium
(C) Plutonium
(D) Uranium
11. The inert gas which is substituted for nitrogen in the air, used by deep sea drivers for breathing is —
(A) Helium
(B) Argon
(C) Krypton
(D) Xenon
12. The group of metals Fe, Co, Ni may be best called as —
(A) Alkali metals
(B) Rare metals
(C) Main group metals
(D) Transition metals
13. Which of the following characters is not shown by hydrogen —
(A) It burns in air to form water
(B) It supports combustion
(C) It combines with almost all metals forming hydrides
(D) It readily combines with fluorine and chlorine
14. Which of the following elements is obtained from sea weeds ?
(A) Argon
(B) Sulphur
(C) Vanadium
(D) Iodine
15. The metallic constituents of hard water are —
(A) Magnesium, Calcium and tin
(B) Iron, tin and calcium
(C) Calcium, magnesium and iron
(D) Magnesium, tin and iron
16. The property of a substance to absorb moisture from the air on exposure is called —
(A) Osmosis
(B) Desiccation
(C) Efflorescence
(D) Deliquescene
17. Brass gets discoloured in air due to the presence of which gas in air —
(A) Carbon dioxide
(B) Oxygen
(C) Hydrogen Sulphide
(D) Nitrogen
18. Quartz crystals normally used in quartz clocks etc. is chemically —
(A) Sodium Silicate
(B) Silicon dioxide
(C) Germenium dioxide
(D) A mixture of (B) & (C)
19. Bell Metal is an alloy of —
(A) Brass and Nickel
(B) Zinc and Copper
(C) Tin and Copper
(D) Nickel and Copper
20. The high temperature superconductors are —
(A) Metal alloys
(B) Ceramic oxides
(C) Inorganic polymers
(D) Pure rare earth metals
21. The ingredients of Gun metal are —
(A) Iron, tin
(B) Copper, tin
(C) Iron, brass, tin
(D) Iron, zinc, titanium
22. The gas usually causing explosions in coal mines is —
(A) Hydrogen
(B) Carbon monoxide
(C) Air
(D) Methane
23. Cotton fibers are made of —
(A) cellulose
(B) starch
(C) proteins
(D) fats
24. Which of the following ores does not contain iron?
(A) Haematite
(B) Magnetite
(C) Limonite
(D) Cassiterite
25. Nuclear fission is caused by the impact of —
(A) Proton
(B) Electron
(C) Neutron
(D) (A) & (b)
Answers: 1. (B) 2. (D) 3. (D) 4. (D) 5. (D)6. (C) 7. (A) 8. (D) 9. (A) 10. (C) 11. (A) 12. (D)
13. (B) 14. (D) 15. (C) 16. (D) 17. (C) 18. (B) 19. (C) 20. (B) 21. (B) 22. (D) 23. (A) 24. (D) 25. (C)
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