A. Different wavelength
B. Different colours
C. Different intensities
D. all have little contribution
Related Mcqs:
- Pfund series are produced in the spectrum of hydrogen atom__________________?
A. when electrons jump down to 2nd- orbit
B. when electrons jump down to 3rd- orbit
C. when electrons jump down to 4th- orbit
D. when electrons jump down to 5th- orbit - When an atom absorbs energy the lines in the spectrum will appear which are_________________?
A. Brighter
B. Darker
C. Colourless
D. Hard to locate - Generally the limit of visible spectrum is__________?
A. 1000 to 300 A°
B. 3800 to 7600 A°
C. 8000 to 10,000 A°
D. 12,000 to 15,000 A°Submitted by: Muhammad Ali Kunbhar
- Different components of a mixture have different Rf values due to________________?
A. Polar solvent used
B. Combination of solvents used
C. Their different distribution coefficients in the solvent
D. Distributive law - An enzyme has its specificity due to________________?
A. Substrate
B. Structure
C. Temperature
D. Pressure - Activated complex is formed due to________________?
A. Pressure
B. Effective collision
C. Ineffective collisions
D. Temperature - Carbonates of lithium are not stable like that of sodium due to________________?
A. Low electronegativity
B. Low electropositivity
C. Low charge density
D. Not known yet - Electricity in voltaic cell is produced due to_________________?
A. neutralization
B. oxidation
C. reduction
D. both B & C - When electrons collide with heavy metals than ___________ are produced?
A. Beta-rays
B. Alpha-rays
C. X-rays
D. Gamma-rays - Colour of fluorescene produced by cathode rays depends upon________________?
A. Temperature
B. Pressure
C. Volume
D. Composition of glass
