Saleha Pervez, Mansi Garg and, Poonam Singh Solutions for Chapter: General Chemistry, Exercise 1: Self Check

Consider the following statements

1. Compounds are made up of two or more elements combined in a fixed ratio.

2. All compounds are homogenous mixture of elements.

Which of the statements given above is/are correct?

Consider the following statements

1. Solubility of substance always decreases with increase in temperature.

2. Solubility of ${\mathrm{CaCO}}_3$ decreases with increase in temperature.

3. Solubility of ${\mathrm{CaSO}}_4$ increases with increases in temperature.

Which of the statements given above is/are correct? 

Which of the following substances given below is deliquescent?

$1$. Glycerol

$2$. Sodium hydroxide

$3$. Calcium chloride

$4$. Sodium chloride

$5$. Sugar

$6$. Aluminium chloride

Choose the correct option.

Consider the following statements: 
$1.$ Gases are compressible fluids. 
$2.$ Molecular interaction energy practically overpowers the thermal energy in the solid-state.
$3.$ Molecular interaction between molecules is identical in stream water and ice.
$4.$ Liquid is an incompressible fluid.

Which of the statement(s) given above is/are false?

Consider the following statements

1. During the process of osmosis, the solvent travels from the concentrated solution to the dilute solution.

2. In the reverse osmosis, external pressure is applied to the dilute solution.

Which of the statement(s) given above is/are correct?

Consider of following statements:

1. As pressure increases, volume increases at constant.

2. As pressure increases, volume decreases at a constant temperature.

3. As temperature increases, pressure decreases at constant volume.

4. As temperature increases, pressure increases at constant volume.

Which of the above is a correct statement of Gay-Lussac's law describing the behaviour of a fixed amount of gas?

Consider the following statements

1. The particles of nail polish remover pour on your palm, the particles gain energy from your palm or surroundings and evaporate causing the palm to feel cool.

2. After a hot sunny day, people sprinkle water on the roof or open ground because the large latent heat of vaporisation of water helps to cool the hot surface.

Which of the statement(s) given above is/are correct?

Consider the following statements: 
$1.$ Amorphous solids do not have sharp melting points.
$2.$ Amorphous solids are regarded as supercooled liquids.
$3.$ Amorphous solids have the same mechanical strength and electrical and optical properties in all directions.

Which of the above is/are true about amorphous solids?