Optic fibres are used in :

Related Mcqs:

1. In diaphragm cell level of brine in anode compartment is kept slightly higher which prevents_______________?

   A. Hydroxide ions to reach anode
   B. Chlorine gas to mix
   C. Cathode to decay
   D. All of the above

2. Which one of the following methods will not give benzene ?

   A. Heating sod. Salt of Benzoic acid with soda lime
   B. Distilling phenol with Zn dust
   C. Chlorobenzene with NaOH at 360°C & 150atm.
   D. Hydrolysis of benzene sulphonic acid with super heated steam

3. Orthoboric acid is 2.6% soluble in water at 40?C and ___________at 107°C.

   A. 26%
   B. 27%
   C. 37%
   D. <2.6%

4. Oxygen and sulphur resemble in all except________________?

   A. Electronic conviguration of valence shell electrons
   B. Show allotropy
   C. Polymeric
   D. Show same oxidation state

5. Indicate the correct statement__________________?

   A. Cl2 is the strongest oxidizing agent
   B. I2 is a volatile solid
   C. Br2 is more reactive than Cl2
   D. Cl2 is insoluble in water

6. Sabatier Senderns reaction involve _____________ in presence of Ni?

   A. Aalkene & H2
   B. alkene & O2
   C. alkene & N2
   D. alkyne & Cl2

7. SN2 reaction can be best carried out with__________________?

   A. primary alkyl halide
   B. secondary alkyl halide
   C. tertiary alkyl halide
   D. all

8. An alcohol which can be prepared by fermentation is_________________?

   A. CH3OH
   B. C3H7OH
   C. CH3 – CH2 – OH
   D. C6H5OH

9. Octane rating of Gasoline can be increased by __________?

   A. Refining
   B. Cracking
   C. Reforming
   D. None of These

   Submitted by: Aamir khan Hullio

10. Which instrument is used to measure the viscosity.?

    A. Hygrometer
    B. Hydrometer
    C. Anemometer
    D. Viscometer 

    Submitted by: Zahid Jagirani