Question

1) The measurement of percentage of element in colorimetry is based on

a) Viscosity of solution
b) Volume of solution
c) Colour of solution
d) Conductivity of solution

2) Light can be said to be monochromatic if

a) It is constant intensity light b)It is white light
c) It is light of single wavelength
d)It is light of multiple wavelength​

Answer 1

The answers of the given question are as follows:

(1) The measurement of percentage of element in colorimetry is based on:

(c) Colour of solution

- Colorimetry or colourimetry is a technique which is used to determine the concentration of the colored compounds in solution.

(2) Light can be said to be monochromatic if :

(c) It is light of single wavelength.

- Monochromatic light means light which is only of one colour.

- As each colour has unique wavelength, so monochromatic light means light  of single wavelength.