The yellow colour in photochemical smog is due to presence of__________________?

Related Mcqs:

1. Which of the following is not a condition for the formation of smog ?

   A. sufficient NO
   B. sunlight
   C. less movement of air
   D. winds

2. Molten NaCl conducts electricity due to the presence of_______________?

   A. Free electrons
   B. Free molecules
   C. Free ions
   D. Atoms of Na and Cl

3. On heating aldehydes with Fehlings solution we get a precipitate whose colour is_________________?

   A. pink
   B. black
   C. yellow
   D. brick red

4. Colour of fluorescene produced by cathode rays depends upon________________?

   A. Temperature
   B. Pressure
   C. Volume
   D. Composition of glass

5. On heating aldehydes with Fehlings solution we get a precipitate whose colour is_________________?

   A. pink
   B. black
   C. yellow
   D. brick red

6. The colour of chlorine gas is_______________?

   A. pale yellow
   B. freenish yellow
   C. reddish brown
   D. grayish black

7. Colour in transition metal compounds is attributed to____________?

   A. Small sized metal ions
   B. Absorption of light in UV region
   C. Complete ns sub-shell
   D. Incomplete (n-1) d sub-shell

   Submitted by: Muhammad Ali Kunbhar

8. In solids the temperature is the measure of__________________?

   A. Average kinetic energy of molecules
   B. Vibrational kinetic energy
   C. Translational kinetic energy
   D. None of the above

9. Nucleic acids direct the synthesis of__________________?

   A. Glucose
   B. Triglycerides
   C. Proteins
   D. All

10. In diaphragm cell hydrogen is discharged by the reduction of__________________?

    A. Water
    B. HCI
    C. Na+
    D. NaCl