WBJEE Question Paper Answers 2012 Engineering and Medical.
West Bengal Joint Entrance Exam (WBJEE) 2012 examination is the procedure to get the Admission to West Bengal Engineering and Medical Colleges for admission to Professional Degree Courses
WBJEE 2012 Question Paper test papers will be fully objective type Physics, Chemistry, Mathematics, Biology. This WBJEE 2012 Question will help all the students for their WBJEE 2012 exam preparation, here the question type is MCQ i.e. multiple choice question answers, if this West Bengal Joint Entrance Exam 2012 question paper in pdf file for WBJEE Medical Entrance you can download it in FREE, if West Bengal Joint Entrance Exam 2012 paper in text for WBJEE you can download WB Joint Entrance Exam 2012 page also just Go to menu bar, Click on File->then Save.
WBJEE Question Paper Answers 2012 Engineering and Medical.
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1. A train approaching a railway platform with a speed of 20 mst starts blowing the whistle. Speed of sound In air Is 340 ms1. If the frequency of the emitted sound from the whistle Is 640 Hz, the frequency of sound to a person standing on the platform will appear to be
A. 600 Hz B. 640 Hz C. 680 Hz D. 720 Hz
2. A straight wire of length 2 m carries a current of 1OA If this wire is placed In a uniform magnetic field of
0.15 T making an angle of 45° with the magnetic field, the applied force on the wire will be
Which one of the following characteristics belongs to an electrophile?
A. It is any species having electron deficiency which reacts at an electron rich C-centre
B. li Is any species having electron enrichment, that reacts at an electron deficient C-centre
C. It Is cationic In nature
D. It Is anionic In nature
Which one of the following methods Is used to prepare Me3COEI with a good yield?
A. Mixing EtONa with Me3CC1
B. Mixing Me3CONa with EICI
C. Heating a mixture of (1:1) EtOH and Me3COH in presence of conc. H2S04
D. Treatment of Me3COH with EtMgI
58.5 gm of NaCI and 180gm of glucose were separately dissolved In l000ml of water. Identify the correct statement regarding the elevation of boiling point (b.p.) of the resulting solutions.
A. NaC1 solution will show higher elevation of b.p.
B. Glucose solution will show higher elevation of b.p.
C. Both the solution will show equal elevation of b.p.
D. The b.p. elevation will be shown by neither of the solutions
Which of the following will show a negative deviation from Raoult’s law?
A. Acetone-benzene B. Acetone-ethanol
C. Benzene-methanol D. Acetone-chloroform
In a reversible chemical reaction at equilibrium, if the concentration of any one of the reactants Is doubled, then the equilibrium constant will
A. also be doubled B. be halved
C. remains the same D. becomes one-fourth
Identify the correct statement from the following in a chemical reaction.
A. The entropy always increases
B. The change In entropy along with suitable change In enthalpy decides the fate of a reaction
C. The enthalpy always decreases
D. Both the enthalpy and the entropy remain constant
WBJEE Physics and Chemistry Question Paper 2012
WBJEE maths Question Paper 2012
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