DIRECTIONS : Questions based on Chemistry.
91. Which among the following gases is used to manufacture chloroform?
A. Methane
B. Propane
C. Ether
D. Radon
Ans: A.
92. Which metal was first used by man?
A. Aluminium
B. Gold
C. Iron
D. Brass
Ans: A.
93. Deep blue colour is imported to glass by the presence of
A. Cupric oxide
B. Ferrous oxide
C. Cobalt oxide
D. Nickel oxide
Ans: C.
94. What is the most common soil in sea water?
A. Sodium chloride
B. Calcium carbonate
C. Potassium chloride
D. Magnesium sulphate
Ans: A.
95. Select the one which is not a mixture?
A. Air
B. Gasoline
C. LPG
D. Distilled water
Ans: D.
91. Which among the following gases is used to manufacture chloroform?
A. Methane
B. Propane
C. Ether
D. Radon
Ans: A.
92. Which metal was first used by man?
A. Aluminium
B. Gold
C. Iron
D. Brass
Ans: A.
93. Deep blue colour is imported to glass by the presence of
A. Cupric oxide
B. Ferrous oxide
C. Cobalt oxide
D. Nickel oxide
Ans: C.
94. What is the most common soil in sea water?
A. Sodium chloride
B. Calcium carbonate
C. Potassium chloride
D. Magnesium sulphate
Ans: A.
95. Select the one which is not a mixture?
A. Air
B. Gasoline
C. LPG
D. Distilled water
Ans: D.
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