What are the two properties of the ink components that determine their movement along the chromatography paper/fabric (see Introduction)?

Solubility of the ink in the solvent

Component substances in the ink

Explanation:

Movement along the chromatography paper/fabric is determined by the solubility of the ink in the solvent and the component of the ink itself.

Chromatography is a separation technique used to separate complex mixtures.

The solution containing the mixture to be separated is spotted on a line near the end of the paper and then the paper is placed in a tank.

The solvent moves up the paper and it separates the mixtures in the spot into a number of different spots.

We can see that the solubility of the ink and component of the ink determines how they will be separated.

explanation:

i think option no d is the correct answer

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure  

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.