Which of the following alkyl halides may undergo SN2 reaction except?
A. Primary
B. Secondary
C. Tertiary
D. none of these
Mathematics Subject specialist Lecturer BPS-17
Mathematics Lecturer BPS-17 SPSC Paper
Max of a chemical compound rely upon:
A. Chemical bonding
B. Concentration
C. Electromagnetic radiation
D. Hybridization
Graphite is used in nuclear reactors
A. As a lubrican
B. As a fuel
C. For lining the inside of the reactor as an insulator
D. For reducing the velocity of neutrons
A mass spectrometer measures which of the following characteristics of the molecule?
A. Mass
B. weight
C. Charge
D. Mass to charge ratio
Which of the following instruments may be used to measure the optical activity of compounds
A. Infrared Spectrophotometer
B. Atomic absorption Spectrophotometer
C. Polarimeter
D. NMR Spectrometer