CIL Coal India Chemical Mineral Question Papers Answers.
CIL Coal India Chemical Mineral Question Papers Answers CIL Recruitment Exam Written Test Paper on Chemical Mineral Sample Model Question Papers with Answers CIL Coal India Chemical Mineral Exam 2012
Q1 : Consider the following reactions:
1. Knoevenagel condensation
2. Cannizzaro reaction
3. Benzoin condensation
4. Perkin reaction
The reactions used for the synthesis of α,β‐unsaturated carboxylic acids include
A. 1 AND 3
B. 1 AND 4
C. 1, 2 AND 3
D. 1,2,3 AND 4
Correct Answer: B
If the temperature of saturated water is increased infinitesimally at constant entropy, the resulting state of water will be
(A) Liquid (B) Liquid – vapor coexistence
(C) Saturated vapor (D) Solid
The local velocity of a fluid along a streamline can be measured by
(A) Pitot tube (ANS) (B) Venturi meter (C) Rotameter (D) Orifice meter
The half-life of an nth order reaction in a batch reactor depends on
(A) only the rate constant
(B) only the rate constant and the order of the reaction
(C) only the rate constant and the initial reactant concentration
(D) the rate constant, initial reactant concentration, and the order of the reaction (ANS)
In petroleum refining, catalytic reforming is used to convert
(A) Paraffins and naphthenes to aromatics (ANS)
(B) Paraffins to hydrogen and carbon monoxide
(C) Gas oil to diesel and gasoline
(D) Light olefins to gasoline
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