35.Which one among the following would expand the most on being heated?
   [CDS 2011]
   (a) Water
   (b) Alcohol
   (c) Glass
   (d) Air
Ans: (a)
36.If two pieces of ice are mutually pressed to each other than these pieces stick
   because: [RRB ASM/GG 2004]
   (a) at higher pressure the melting point of ice decreases
   (b) at higher pressure the melting point of ice increases
   (c) at higher pressure the melting point of ice firstly decreases and then
       increases
   (d) there exists no relation between the pressure and melting point of the ice
Ans: (c)
37.At higher altitudes water boils at the temperature lower than 100°C because:
   [UPPCS (Pre) 1994]
   (a) due to lesser atmospheric pressure boiling point of water lowers
   (b) the gravitational pull is lesser here
   (c) the winds on the mountains are stormy
   (d) None of these
Ans: (a)
38.The inside pressure of a soap bubble is : [UPPCS (Pre) 1995]
   (a) more than the atmospheric pressure
   (b) less than the atmospheric pressure
   (c) equal to the atmospheric pressure
   (d) half of the atmospheric pressure
Ans: (a)
39.The sudden downfall of the reading of barometer indicates that the weather:
   [UPPCS 1996]
   (a) will be stable and calm
   (b) will be rainy
   (c) will be stormy
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