0462018 ا اا ااه ااام

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The scientist who arranged the elements, 17 their increasing order of atomic weight is
A) Mendslesv B) Dalton
C) Avogadro D) Mendel
In which of the following condition does the evaporation of water takes place ?
A) Only at 100°C B) Only above 100°C
C) Atall temperatures D) Only below 100°C
Which glass is used for making lenses and prisms ?
A) Hard glass B) Flint glass
C) Soda glass D) Borosilicate glass
Which reducing agent is used for the extraction of highly reactive metal from their ores ?
A) CO, B) CO
C) Electricity D) Carbon
. Which among the following fusls given has the highest calorific value ?
A) Petrol B) Carbon C) Ethanol D) Hydrogen
Electrons revolve around the nucleus in a fixed path called omits. This concept related to
A) Rutherford B) J.J. Thomson
C) Dalton D) Nisls Bohr

What is the colour that comes to the base of the prism if composite yellow light is passed
through it ?

A) red B) green C) blue D) violet
A very large force acting for a very short time is known as
A) Impulsive force B) Momentum
C) Inertia D) Cohesive force
Choose the odd one.
A) running train B) waterina dam
C) stretched rubber band D) flower pot on the sunshade
. Sound waves have high velocity in
A) liquids B) gases C) solids D) vacuum
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