Page 377 - General Knowledge

GENERAL KNOWLEDGE 2019

97. Which among the following of a catalyst does not change at the end of a reaction?
A. Quantity
B. Chemical Composition
C. Both Quantity and Chemical com position
D. None of the above

98. The noble gases are a group of chemical elements with very similar properties: under
standard conditions, they are all odorless, colorless, monatomic gases, with a very low
chemical reactivity. How many Noble gases occur naturally?
A. 5
B. 6
C. 7
D. 8

99. Hard Water contains which of the following?
A. Aluminum
B. Chlorine
C. Calcium
D. Zinc

100. Which among the following is an ionic solid?
A. Diamond
B. Dry ice
C. Table salt
D. All are ionic solids

101. Which among the following statements about Ozone is INCORRECT?
A. It is found in the upper atmosphere filters potentially damaging ultraviolet light from reaching
the Earth‘s surface
B. It is lighter than oxygen that is why it is found in the upper atmosphere
C. It is an allotrope of oxygen
D. All are correct

102. Which among the following is correct ?
A. Oxidation takes place at Cathode and Reduction Takes Place at Anode
B. Oxidation takes place at Anode and Reduction Takes place at Cathode
C. Both Oxidation and Reduction takes place at cathode
D. Both Oxidation and Reduction takes place at Anode

103. The atomic weight of Chlorine is 35. It consists of _______?
A. 17 Protons + 18 Neutrons
B. 17 Neutrons + 18 protons
C. 17 Neutrons + 17 Protons + 1 electron
D. None of the above

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