TOPIC: CHEMISTRY OF EARTH AND SPACE
DIRECTION: Choose the correct answer from the lettered options.
1. How many moons does Jupiter have?
A. 8
B. 16
C. 15
D. 20
The correct answer is option [B]
2. The density of earth is ______.
A. 5.52g cm-3
B. 5.10g cm-3
C. 3.93g cm-3
D. 5.44g cm-3
The correct answer is option [A]
3. What planet is famous for the beautiful rings that surround it?
A. Saturn
B. Jupiter
C. Neptune
D. Uranus
The correct answer is option [A]
4. A galaxy is a huge collection of ______, ______ and _______.
A. planets, star and dust
B. planets, stars and gas
C. stars, gas, and sun
D. stars, gas and dust
The correct answer is option [D]
5. How many moons does Neptune have as at 2013?
A. 13
B. 15
C. 18
D. 20
The correct answer is option [A]
6. ______ is observed when emitted light passes through a material that partially absorbs it
before it is dispersed.
A. Adsorption spectra
B. Emission spectra
C. Absorption spectra
D. Thermionic spectra
The correct answer is option [C]
7. All planets revolve around the sun in the same direction and at the same time except
_______.
A. earth
B. venus
C. mars
D. mercury
The correct answer is option [B
TOPIC: CHEMISTRY, INDUSTRY AND THE ENVIRONMENT
DIRECTION: Choose the correct answer from the lettered options.
1. The furnace in which glass is melted is ________.
A. blast furnace
B. tank furnace
C. solvay process
D. open hearth furnace
The correct answer is option [A]
2. Write an equation for the reaction of aluminium oxide with sodium hydroxide.
A. Al2O3 + 2OH- → 2[Al(OH)4]
–
B. Al2O + 2OH- + 3H2O → 2[Al(OH)4]
–
C. Al2O3 + 2OH- + 3H2O → 2[Al(OH)4]
–
D. Al2O3 + 2OH- + H2O → [Al(OH)4]
–
The correct answer is option [C]
3. Fine chemicals have the following characteristics except ________.
A. they are chemically pure
B. they are produced by batch process
C. they are produced in large quantity because of high applicability
D. they are produced in small quantity because of limited applicability
The correct answer is option [C]
4. Urea, Ammonium nitrate and Ammonium sulphate are examples of ________.
A. nitrogenous fertilizers
B. potassium fertilizers
C. phosphate fertilizers
D. sulphate fertilizers
The correct answer is option [A]
5. The plastic industry is divided into _______ categories.
A. 3
B. 2
C. 4
D. 1
The correct answer is option [C]
6. Polypropylene and polystene belongs to ________.
A. thermoplastic
B. thermosetting plastic
C. cold setting plastic
D. warm setting plastic
The correct answer is option [A]
7. The substances added to the soil to provide one or more nutrients are called ________.
A. growth harmonies
B. minerals
C. fertilizers
D. none of the above
The correct answer is option [C
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