some questions for the 12 science student.........

• What is the chemical formula of the chloroform?

          a.CHCl3                   b.CCL4
       d.CH3CH2              c.C2H5

• If a body is moving with the initial velocity of 20m/s.Then that body is stop and move again with the velocity 10m/s and takes the time15 minutes then find the specific speed of that body?                                                                                                               

                    a.2                  b.3
                    c.4                   d.5

• what is the conduction band? 

                (no option )

• which is the charge of an electron in the following option?

                a.1.6*10^-19                   b.6.67*10^-11
               c.6.67*10^27                   d.2*10^2

• In the Millikan s oil drop experiment which type of the instrument is used ?

            a.double walled chamber                 b. a plastic tube
            c a. test tube and optical instrument   c.a beaker

• who invent the oxygen gas?

            a.J.pristle                         b.kevendise
            c.madam curie                 d Eienstein

• At first internet is used by...........

            a.army                          b.builder
           c.doctors                      d.engineer

• What is the value of the Loge ?

                      a. 1                               b.2
                      c.3                                d.4

• what is the pH value of the hard water ?

                   a.2                            b.3
                   c.7                            d.5

• define metro logy?

                   (no option)

• what is the number of the bonds in the alkyne &alkene?

                 a3&2                         b.3&$
                 c.5&3                         d.6&7

• What is the first law of thermodynamics?

                     (no option)

• Which option describe the first law of the electrolysis?

                 a.W=zIt                         b.W1/E1=W2/E2
                 c.W=F*D                      d.Z=E/F

• If the two radius curvature of the planoconvex lens R1&R2 and the refractive index is given then the focal length can be determined by..........

               a.F=(1/R1+1/.R2)(m-1)                          b. F=(1/R1+1/.R2)
              c.F= (1/R1+1/.R2)m                               d.   F=m*(R1+R2)

• what is the conduction band ?

             (no option)

• There are ................ number of the colors in the light of the sun?

                      a.7                                   b.4
                      c.3                                   d.5

• The planet Venus is also looks as the red planet it is due to the......

             a.acidic clouds in the atmosphere                 b.the Venus is so near  to the sun
             c.its color is red                                           d.none of the above

• The velocity of the sound is more in.................

               a.damp atmosphere                                    b.dry air
               c.crowd area                                              d.all of the above

• The reverberation is occurs in the room if the room's length is..................

                  a.15                                                           b.17
                  c.14                                                            d.all of the above

• The   dimenssion of the viscosity is .................

                          (no option)

• Moon is receding away from the earth every year .........cm.

                     a.3.2                                               b.45.5
                     c.5.4                                              d.none of the above

• Which light is used in the Millikan's oil drop experiment ?

                  a. simple light &X-ray                                    b.only simple light
                  c.all of the above                                            d.none of the above

• Steam engine is invented by .................

                   a.James watt                                             b.Richard Archright
                   c.all of the above                                       d.none of the above

• The drunk people are arrested during the driving by the use of the......

                  a.Breathlizer                           b.speedometer
                 c.none of the above                d.keetometer

• speedometer is also known as the.............

                 a.radar gun                                      b.speed gun
                c.all of the above                                d R-name
What is metallurgy?
(no option)
Hematite is the ore of ............. metal.
a.iron                             b.steel
c.silver                            c. none of the above