Chemistry, asked by pruthvi6128, 2 months ago

35. The viscosity of liquid is determined by :
B) Polarimeter
A) Stalagmoment is an
C) Ostwald's Viscometer
D) Conductometer
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Answers

Answered by abhijith91622

Final answer:

The viscosity of a liquid is determined by using Ostwald's viscometer. Hence, option (C) Ostwald's viscometer is the correct answer.

Given that: We are given,

(A) Stalagmometer

(B) Polarimeter

(D) Conductometer

To find: We have to find the instrument which is used to determine the viscosity of liquid.

Explanation:

The viscosity of a liquid is determined by using Ostwald's viscometer. Hence, option (C) Ostwald's viscometer is the correct answer.
Ostwald's viscometer is commonly used for measuring the coefficient of liquids viscosity and comparing the viscosities of liquids. In an Ostwald's viscometer, a fixed volume of liquid is allowed to fall under its weight and the time required for flow is noted. Knowing the densities of the liquids, the viscosity may be calculated and compared.
A stalagmometer is a glass instrument used for measuring the surface tension of a liquid. Hence, option (A) Stalagmometer is the wrong answer.
A Polarimeter is an analytical instrument that is used for measuring the polarization of plane-polarized light and analyzing the optical activity of chemical substances. Hence, option (B) Polarimeter is the wrong answer.
A Conductometer is an instrument used for measuring the conductivity of an electrolyte by using a conductivity cell. Hence, option (D) Conductometer is the wrong answer.