Which regions of the light radiations of the visible ultraviolet lying between ‚Äö√Ñ√∂‚àö√ë‚àö¬® wavelength are chiefly concerned in bringing about photochemical reactions?$

19000 ‚Äö√†√∂‚àö√± and 12,000 ‚Äö√†√∂‚àö√±

1000 ‚Äö√†√∂‚àö√± and 2000 ‚Äö√†√∂‚àö√±

1500 ‚Äö√†√∂‚àö√± and 1000 ‚Äö√†√∂‚àö√±

8000 ‚Äö√†√∂‚àö√± and 2000 ‚Äö√†√∂‚àö√±

Which regions of the light radiations of the visible ultraviolet lying

1.	Which regions of the light radiations of the visible ultraviolet lying between ‚Äö√Ñ√∂‚àö√ë‚àö¬® wavelength are chiefly concerned in bringing about photochemical reactions?$
A.	1000 ‚Äö√†√∂‚àö√± and 2000 ‚Äö√†√∂‚àö√±
B.	1500 ‚Äö√†√∂‚àö√± and 1000 ‚Äö√†√∂‚àö√±
C.	8000 ‚Äö√†√∂‚àö√± and 2000 ‚Äö√†√∂‚àö√±
D.	19000 ‚Äö√†√∂‚àö√± and 12,000 ‚Äö√†√∂‚àö√±
Answer» D. 19000 ‚Äö√†√∂‚àö√± and 12,000 ‚Äö√†√∂‚àö√±

Discussion

No Comment Found

Related MCQs

A substance absorbs 2.0 x 1016 quanta or radiations per second and 0.002 mole of it reacts in 1200 seconds. What is the quantum yield or the reaction (N = 6.02 x 1023)?
Which of the following are the reactions in which molecules absorbing light do not themselves react but induce other molecules to react?
The quantum efficiency of a photochemical reaction is defined as _______
Which of the following will result in deviation from Beer’s law?
A 0.1 M solution of compound A shows 50% transmittance when a cell of 1 cm width is used at λ1 nm. Another 0.1 M solution of compound B gives the optical density value of 0.1761 using 1cm cell at λ1 nm. What will be the transmittance of a solution that is simultaneously 0.1 M in A and 0.1 M in B using the same cell and at the same wave length? [log 1.301; log 1.4771; log 50 = 1.699].
What are the appropriate reasons for the deviation from the Beer’s law among the following?
The molar extinction coefficient of B (MW = 180) is 4 x 103 L mol-1 cm-1. One-liter solution of C which contains 0.1358 g pharmaceutical preparation of B, shows an absorbance of 0.411 in a 1 cm quartz cell. What is the percentage (w/w) of B in the pharmaceutical preparation?
Which regions of the light radiations of the visible ultraviolet lying between – wavelength are chiefly concerned in bringing about photochemical reactions?
WHICH_OF_THE_FOLLOWING_ARE_THE_REACTIONS_IN_WHICH_MOLECULES_ABSORBING_LIGHT_DO_NOT_THEMSELVES_REACT_BUT_INDUCE_OTHER_MOLECULES_TO_REACT??$
THE_QUANTUM_EFFICIENCY_OF_A_PHOTOCHEMICAL_REACTION_IS_DEFINED_AS________?$

Which regions of the light radiations of the visible ultraviolet lying between ‚Äö√Ñ√∂‚àö√ë‚àö¬® wavelength are chiefly concerned in bringing about photochemical reactions?$

Discussion

No Comment Found

Related MCQs

Reply to Comment