Petrol can be obtained from diesel by
Petrol can be obtained from diesel by A. distillation B. cracking C. catalysis D. polymerization E. dehydrogenation Correct…
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The metal extracted from cassiterite is
The metal extracted from cassiterite is A. calcium B. copper C. tin D. sodium E. lead Correct Answer:…
In which of the following is the oxidation number of nitrogen zero?
In which of the following is the oxidation number of nitrogen zero? A. SO2 and NH3 B. NaNO3…
The following metals are extracted by the electrolytic method except
The following metals are extracted by the electrolytic method except A. potassium B. calcium C. sodium D. tin…
Which of the following compounds crystallizes without water of crystallization?
Which of the following compounds crystallizes without water of crystallization? A. Na2CO3 B. CuSO4 C. MgSO4 D. NaCI…
Nuclear reactions can be used in the following except
Nuclear reactions can be used in the following except A. gauging the thickness of objects B. making atomic…
The decomposition of hydrogen peroxide is represented by the equation: 2H2O(l) + O2(g) what mass…
The decomposition of hydrogen peroxide is represented by the equation: 2H2O(l) + O2(g) what mass of hydrogen peroxide…
Which of the following explains why trioxonitrate (V) acid is not used for preparing hydrogen…
Which of the following explains why trioxonitrate (V) acid is not used for preparing hydrogen from metals? A.…
Which of the following is normally used for drying ammonia gas?
Which of the following is normally used for drying ammonia gas? A. Concentrated tetraoxonitrate (Vl) acid B. Calcium…
Which of the following is normally used for drying ammonia gas?
Which of the following is normally used for drying ammonia gas? A. Concentrated tetraoxonitrate (Vl) acid B. Calcium…