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

Which of the following represent the suitable condition for liquefaction of gases?

The boiling points of diethyl ether, acetone and n-butyl alcohol are 35°C, 56°C and 118°C, respectively. Which one of the following correctly represents their boiling points in kelvin scale?

The best evidence for the existence and movement of particles in liquids was provided by:

The latent heat of vaporization of water is:

Out of the following, an example of matter which can be termed as fluid is:

Which one of the following statements is not true?

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

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

When a crystal of potassium permanganate is placed at the bottom of water in a beaker, the water in the whole beaker turns purple on its own, even without stirring. This is an example of :

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

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

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

Which of the following are also considered to be the states of matter? (i) Plasma, (ii) Platelets, (iii) BFC, (iv) BHC

When heat is constantly supplied by a burner to boiling water, then the temperature of water during vaporization:

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

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

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

One of the following does not undergo sublimation. This one is:

The latent heat of fusion of ice is:

A drop each of two non-corrosive and nonirritating liquids A and B at a temperature of 22°C are placed on the skin. Liquid A gives a more cooling sensation than liquid B. Which of the following can be said about the liquids A and B?

Two identical beakers labeled as (X) and (Y) contain 100 cm3 of water each at 20ºC. To the beaker (X) 100 g of water at 0ºC was added and stirred to mix thoroughly. To the beaker (Y) 100 g of ice at 0ºC was added and stirred till it melt into water. The water in the beaker (Y) will be

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:

The conversion of solid into vapors without passing through the liquid state is called:

If the temperature of a object is 268 K, it will be equivalent to:

In which of the following conditions, the distance between the molecules of hydrogen gas would increases? (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.

Which one of the following statement is correct in respect of fluids?

The evaporation of water increases under the following conditions:

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.

When a gas jar containing colourless air is kept upside down over a gas jar full of brown-coloured bromine vapour, then after some time, the brown colour of bromine vapour spreads into the upper gas jar making both the gas jars appear brown in colour. Which of the following conclusion obtained from these observations is incorrect?

Which of the following are the correct examples of matter?

Choose the correct statement of the following.

When heat is constantly supplied by a gas burner with small flame to melt ice, then the temperature of ice during melting:

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?

The boiling point of ethane is, -88°C. This temperature will be equivalent to:

Which of the following statement is incorrect?

Which of the following process/processes release heat? (i) condensation, (ii) vaporization, (iii) freezing, (iv) melting

Which condition out of the following will increase the evaporation of water?

Some ice pieces kept at a temperature –5°C are heated gradually to 100°C in a beaker. The temperatures of the contents are plotted against time. The correct plot is-

Which one of the following sets of phenomena would increases on raising the temperature?

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Passing grade - 95%