Matter in Our Surroundings

This is an MCQ-based quiz on Matter in Our Surroundings.

This includes vaporization, solidification, condensation, and sublimation.

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The melting point of ice is:

273.16 K 723.16 K 263.16 K 373 K

What is dry ice?

Solid carbon dioxide Nitrogen oxide Carbon mono oxide None of them

Which of the following state is responsible for the glow in the sun and stars?

Solid Liquid Plasma Gas

During summer, water kept in an earthen pot becomes cool because of the phenomenon of:

diffusion transpiration osmosis evaporation

Which of the following phenomenon takes place when we add a drop of Dettol into the water?

Osmosis

Diffusion

Sublimation

None of them

Which of the following phenomena would increase on raising the temperature?

Diffusion, evaporation, compression of gases Evaporation, compression of gases, solubility Evaporation, diffusion, expansion of gases Evaporation, solubility, diffusion, compression of gases

The property of flow is unique to fluids. Which one of the following statements is correct?

Only gases behave like fluids Gases and solids behave like fluids Gases and liquids behave like fluids Only liquids are fluids

On converting 25°C, 38°C and 66°C to Kevlin scale, the correct sequence of temperature will be

298 K, 311 K and 339 K 298 K, 300 K and 338 K 273 K, 278 K and 543 K 298 K, 310 K and 338 K

Seema visited a Natural Gas Compressing unit and found that the gas can be liquefied under specific conditions of temperature and pressure. While sharing her experience with friends she got confused. Help her to identify the correct set of conditions.

Low temperature, Low pressure

High temperature, Low pressure

Low temperature, High pressure

High temperature, High pressure

A few substances are arranged in the increasing order of ‘forces of attraction’ between their particles. Which one of the following represents a correct arrangement?

Water, Air, Wind

Air, Sugar, Oil

Oxygen, Water, Sugar

Salt, Juice, Air

When a gas jar full of air is placed upside down on a gas jar full of bromine vapours, the red-brown vapours of bromine from the lower jar go upward into the jar containing air. In this experiment:

Air is heavier than bromine Both air and bromine have the same density Bromine is heavier than air Bromine cannot be heavier than air because it is going upwards against gravity

A form of matter has no fixed shape but it has a fixed volume. An example of this form of matter is

Krypton Kerosene Carbon steel Carbon dioxide

Which one of the following statements is not true?

The molecules in a solid vibrate about a fixed position The molecules in a liquid are arranged in a regular pattern The molecules in a gas exert negligibly small forces on each other, except during collisions The molecules of a gas occupy all the space available

The correct procedure of heating iron-sulphur mixture to prepare iron sulphide is: :

Heat the powder mixture at the base of the test tube using a blue flame throughout. Heat the iron filings and sulphur mixture in the middle of the test tube using yellow flame throughout. Heat the powder mixture at the top of the test tube using an orange flame throughout. Heat the iron filings-sulphur mixture at 3/4 quarters of the test tube using a red flame throughout.

When water at 0°C freezes to form ice at the same temperature of 0°C, then it:

Absorbs some heat Releases some heat Neither absorbs nor releases heat Absorbs exactly 3.34 x 105J/kg of heat

Which of the following has the strongest interparticle forces at room temperature?

Oxygen Water Bromine Iron

The boiling point of water at sea level is

0°C 273 K 373 K 273°C

In which of the following conditions, the distance between the molecules of hydrogen gas would increase? (i) Increasing pressure on hydrogen contained in a closed container (ii) Some hydrogen gas leaking out of the container (iii) Increasing the volume of the container of hydrogen gas (iv) Adding more hydrogen gas to the container without increasing the volume of the container

(i) and (iii) (i) and (iv) (ii) and (iii) (ii) and (iv)

Which of the following conditions is most favourable for converting a gas into a liquid?

High pressure, Low temperature

Low pressure, Low temperature

Low pressure, High temperature

High pressure, High temperature

Dry ice is

Water in solid state

Water in gaseous state

CO2 in liquid state

CO2 in solid state

Quiz/Test Summary