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

The process due to which steam changes into liquid state on cooling

  1. Decantation

  2. Sedimentation

  3. Filtration

  4. Evaporation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Explanation: Evaporation is a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance. The other type of vaporization is boiling, which is characterized by bubbles of saturated vapor forming in the liquid phase.

Multiple choice

Which of the following is the correct spelling of ‘becoze’?

Directions: Read the following passage carefully and select the most suitable option according to the corresponding number in the passage.

All life forms need (1) air and water. They are very important for living things. We can feel air all around us, but we cannot see or hold it. That's becoze (2) air is made up of gases. Gases are stuff (3) like steam, but they are so light that you cannot see or touch them. Some gases mixed in air are very important for life. We also find them in water when air mixes (4) with water. That happens whenever air touches water. Living things get these gases by taking in (5) either air or water. They drive out (6) harmful gases and things from their bodies with the air or water they pass out. The air and water flowing (7) in and out of living things keep the clock of life (8) ticking inside them.

  1. becoz

  2. beacose

  3. because

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

(3) The correct spellings are 'because'.

Multiple choice

Which of the following could replace 'mixes' as used in the passage?

Directions: Read the following passage carefully and select the most suitable option according to the corresponding number in the passage.

All life forms need (1) air and water. They are very important for living things. We can feel air all around us, but we cannot see or hold it. That's becoze (2) air is made up of gases. Gases are stuff (3) like steam, but they are so light that you cannot see or touch them. Some gases mixed in air are very important for life. We also find them in water when air mixes (4) with water. That happens whenever air touches water. Living things get these gases by taking in (5) either air or water. They drive out (6) harmful gases and things from their bodies with the air or water they pass out. The air and water flowing (7) in and out of living things keep the clock of life (8) ticking inside them.

  1. fixes

  2. covers

  3. combines

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

'Combine' is a synonym of mix. Therefore, combines can replace mixes as used in the passage.

Multiple choice

Which of the following could replace 'stuff' as used in the passage?

Directions: Read the following passage carefully and select the most suitable option according to the corresponding number in the passage.

All life forms need (1) air and water. They are very important for living things. We can feel air all around us, but we cannot see or hold it. That's becoze (2) air is made up of gases. Gases are stuff (3) like steam, but they are so light that you cannot see or touch them. Some gases mixed in air are very important for life. We also find them in water when air mixes (4) with water. That happens whenever air touches water. Living things get these gases by taking in (5) either air or water. They drive out (6) harmful gases and things from their bodies with the air or water they pass out. The air and water flowing (7) in and out of living things keep the clock of life (8) ticking inside them.

  1. somewhat

  2. also

  3. meanwhile

  4. however
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Here the similarity between gases and steam is being depicted. Therefore, somewhat is used which means that gases are a little similar to or like steam.

Multiple choice

Which of the following is similar in meaning to ‘flowing’ as used in the passage?

Directions: Read the following passage carefully and select the most suitable option according to the corresponding number in the passage.

All life forms need (1) air and water. They are very important for living things. We can feel air all around us, but we cannot see or hold it. That's becoze (2) air is made up of gases. Gases are stuff (3) like steam, but they are so light that you cannot see or touch them. Some gases mixed in air are very important for life. We also find them in water when air mixes (4) with water. That happens whenever air touches water. Living things get these gases by taking in (5) either air or water. They drive out (6) harmful gases and things from their bodies with the air or water they pass out. The air and water flowing (7) in and out of living things keep the clock of life (8) ticking inside them.

  1. pouring

  2. fixed

  3. shaking

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

‘Pouring’ means ‘to flow’. Therefore, the correct answer is ‘pouring’.

Multiple choice

Which of these fits gap 22?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.

”Water, water everywhere, not a drop to drink” The problem faced in the middle of the sea by a ___(21)_____ sailor, troubles us regularly in our daily lives. Life cannot _____(22)______ without water, and we get thirsty without drinking it.______(23)_____, natural water, or that from faulty supplies, may carry harmful substances or bacteria. They pollute or damage the purity of water, and sicken our body. That is why, it is always very important to make sure while drinking, that the glasses are clean, and the water is____(24)_____ to drink. 



 

  1. sustain

  2. survive

  3. maintain

  4. stay
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

'Sustain' is the correct answer. It means life cannot be supported without water.

Multiple choice

Which of these fits gap 24?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.

”Water, water everywhere, not a drop to drink” The problem faced in the middle of the sea by a ___(21)_____ sailor, troubles us regularly in our daily lives. Life cannot _____(22)______ without water, and we get thirsty without drinking it.______(23)_____, natural water, or that from faulty supplies, may carry harmful substances or bacteria. They pollute or damage the purity of water, and sicken our body. That is why, it is always very important to make sure while drinking, that the glasses are clean, and the water is____(24)_____ to drink. 



 

  1. dirty

  2. sweet

  3. enough

  4. safe
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Qualities of drinkable water are being talked about. Therefore 'safe' is the correct answer.

Multiple choice

Which of these fits gap 21?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.

”Water, water everywhere, not a drop to drink” The problem faced in the middle of the sea by a ___(21)_____ sailor, troubles us regularly in our daily lives. Life cannot _____(22)______ without water, and we get thirsty without drinking it.______(23)_____, natural water, or that from faulty supplies, may carry harmful substances or bacteria. They pollute or damage the purity of water, and sicken our body. That is why, it is always very important to make sure while drinking, that the glasses are clean, and the water is____(24)_____ to drink. 



 

  1. alone

  2. separated

  3. lonely

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

Here the reference is to a person who is separated from mankind on high seas. Alone only means one, whereas the sense conveyed here is isolated.

Multiple choice

Which of these fits gap 23?

Directions: Complete this passage by selecting the most suitable option for the corresponding gap.

”Water, water everywhere, not a drop to drink” The problem faced in the middle of the sea by a ___(21)_____ sailor, troubles us regularly in our daily lives. Life cannot _____(22)______ without water, and we get thirsty without drinking it.______(23)_____, natural water, or that from faulty supplies, may carry harmful substances or bacteria. They pollute or damage the purity of water, and sicken our body. That is why, it is always very important to make sure while drinking, that the glasses are clean, and the water is____(24)_____ to drink. 



 

  1. Although

  2. Meanwhile

  3. However

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

The sentence provides a contrast and tells us why natural water may also be harmful.