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In cold countries, water does not freeze...

In cold countries, water does not freeze at the bottom of a lake in winter, on account of

A

anomalous expansion of water between `4^(@)Cand0^(@)C`

B

ice being lighter than water

C

ice being poor conductor of heat

D

all the above three factors

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The correct Answer is:
D
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AAKASH SERIES-THERMAL PROPERTIES OF MATTER-EXERCISE-IA
  1. Volume coefficient of expansion of water is

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  2. Among the following , the liquid having negative coefficient of cubica...

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  3. In cold countries, water does not freeze at the bottom of a lake in wi...

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  4. The surface water in a lake is going to freeze. Now the temperature of...

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  5. Water at 4^(@)C is filled to the brim of two beakers A and B of glass ...

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  6. A small stone is inside a ice block which floats in water. When the ic...

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  7. An ideal gas is that which

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  8. It is decided to verify Boyle's law over a wide range of temperature a...

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  9. When the pressure of a gas is doubled under constant temperature the d...

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  10. The pressure of a gas does not depend up on

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  11. When the temperature of a gas is increased at constant pressure, the n...

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  12. Under which of the following conditions PV=RT is obeyed most closely b...

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  13. A sample of an ideal gas occupies a volume 'V' at pressure 'P' and abs...

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  14. The ratio of the volume expansivity of Helium to pressure expansivity ...

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  15. The difference between volume and pressure coefficients of an ideal ga...

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  16. The law that leads to absolute scale of temperature is

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  17. Which of the following methods will enable the volume of an ideal gas ...

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  18. The graph between temperature in ""^(@)C and pressure of a perfect gas...

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  19. A real gas can be approximated to an idcal gas at

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  20. For Boyles law to hold good the gas should be

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