Chemistry · Science General

States of Matter

2,682 Questions

States of matter questions explore physical changes, evaporation, phase transitions, and the properties of liquids and gases. Topics cover density, cryosurgery, heavy water, and electrolytes. This foundational chemistry topic frequently appears in general science sections of SSC and railway exams.

Phase change mechanismsEvaporation and temperature effectsProperties of liquidsPhysical versus chemical changesElectrolytes and heavy water

States of Matter Questions

Multiple choice chemistry separation of substances substances and mixtures formation of mixtures and types of mixtures based on states types of mixtures

Which pair is a miscible liquid mixture?

  1. Ethylalcohol and water

  2. Mercury and alcohol

  3. Benzene and water

  4. Carbondisulphide and water
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Water is polar and has hydrogen bonding. Since, ethyl alcohol has oxygen atom it also undergoes hydrogen bonding when mixed with water. Also, ethyl alcohol is polar due to high electro-negativity of $O$, due to which it mixes with water. Hence, ethyl alcohol and water are a pair of miscible liquid mixture. 
Multiple choice chemistry non-metals dihydrogen fuel dihydrogen as a fuel introduction to hydrogen

In which of the following way, the transportation of hydrogen gas do not take place?

  1. Liquid

  2. Gas

  3. Compressed gas

  4. Pressurized gas
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The transportation of hydrogen gas is done in heavy metal cylinders and it can also be transported in liquid form. In order to transport large amounts of hydrogen it must be either pressurized and delivered as a compressed gas, or liquefied.

Multiple choice physics beats in sound waves

The following is best Lubricant?

  1. Solids

  2. Liquid

  3. Gas

  4. Both B and c
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Lubricants can be solid, liquid, or gas, but liquids are the most common and generally considered the most effective for reducing friction in machinery.

Multiple choice surface tension physics surface energy of a liquid work done in stretching a liquid surface: surface energy of a liquid properties of matter

Two drops of a liquid are merged to from a single drop. In this process-

  1. Energy is released

  2. Energy is absorbed

  3. Energy remains constant

  4. First B then A
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

It is nature of free surface to always minimize the surface tension; Hence when two bubble fuse then energy is released due to decrease in surface Tension.

Multiple choice surface tension physics surface energy of a liquid work done in stretching a liquid surface: surface energy of a liquid properties of matter

Potential energy of a molecule on the surface of a liquid is as compared to another molecule inside of the liquid is

  1. More

  2. Less

  3. Both a and b

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Due to surface Tension, Potential energy of a molecule at free surface is more than the molecules inside the liquid.

Multiple choice

which potion effect does not exist?

  1. haste

  2. flying

  3. absorbtion

  4. water breathing
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

While there are many potion effects in Minecraft, there is no official 'flying' potion effect available to players in survival mode.

Multiple choice

Pearls melt in...

  1. Saline

  2. Water

  3. Vinegar

  4. Urine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Pearls are primarily composed of calcium carbonate, which reacts chemically with acetic acid found in vinegar. This reaction dissolves the calcium carbonate, causing the pearl to disintegrate.

Multiple choice

When water turns into a gas-

  1. condensation

  2. evaporation

  3. precipitation

  4. transpiration
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Evaporation is the process by which water changes from a liquid state to a gas or vapor state, typically driven by heat from the sun.

Multiple choice

When water vapor is cooled and forms droplets-

  1. evaporation

  2. condensation

  3. precipitation

  4. accumulation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Condensation is the process where water vapor cools down and changes from a gas back into liquid water droplets, which often form clouds.

Multiple choice

Which is not a state of matter?

  1. Liquid

  2. Boiling

  3. Gas

  4. Solid
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The states of matter are solid, liquid, gas, and plasma. Boiling is a process of phase change, not a state of matter itself.

Multiple choice

When water is boiled, what state does it become?

  1. Solid

  2. Liquid

  3. Gas

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Boiling is the process of a liquid turning into a gas. This occurs when the liquid reaches its boiling point and particles gain enough energy to escape into the air.