The alkanol represented by the structure below is
A. primary and dihydric B. secondary and monohydric C. tertiary and dihydric D. secondary and dihydric Correct Answer: Option A = primary and dihydric
If humid air is polluted by chlorine discharged; the air can be restored by sprinkling
A. solid MnO2 B. acidified KMnO4 C. acidified FeSO4 D. saturated NaCl(aq) Correct Answer: Option B = acidified KMnO4
Cathodic protection of metals is based on?
A. standard electrode potential of hydrogen B. its electrical conductivity C. nature of oxides formed D. relative tendencies of oxidation Correct Answer: Option D – relative tendencies of oxidation
What is the relative molecular mass of the compound below
[H = 1.0; C = 12.0; O = 16.0] A. 137 B. 136 C. 64 D. 59 Correct Answer: Option B = 136
The ratio of carbon atoms of hydrogen atoms in a hydrocarbon is 1:2. If its molecular mass is 56; What is its molecular formula?
A. C3H6 B. C4H8 C. C2H4 D. CH2 Correct Answer: Option B = C4H8Products
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