Which polymer is used to manufacture the cabinets of radio and TV?
(A) Polyvinyl Chloride
(B) Polystyrene
(C) Bakelite
(D) Nylon
As compared to pure water, a body in salty water will :
(A) Sink more
(B) Sink less
(C) Remain same
(D) None of these
Which instrument is used to record Atmospheric pressure?
(A) Thermometer
(B) Barometer
(C) Seismometer
(D) Oscilloscope
Which instrument is used to record the speed of a vehicle?
(A) Thermometer
(B) Barometer
(C) Speedometer
(D) Oscilloscope
Which statement is are correct about D.N.A. ?
(A) It is mainly found in nucleus
(B) It contains uracil in place of thymine.
(C) It bring the message from R.N.A.
(D) Present in ribosome.
Who among the following evolved the concept of the relationship between mass and energy?
(A) Dalton
(B) Rutherford
(C) Einstein
(D) Planck
What is the product formed when sodium bicarbonate is heated strongly?
(A) Sodium Peroxide
(B) Sodium Monoxide
(C) Sodium Carbonate
(D) Sodium Hydroxide
The velocity of light was first measured by
(A) Galileo
(B) Newton
(C) Einstein
(D) Romer
Which of the following is not a major source of proteins?
(A) Fish
(B) Gram
(C) Soyabean
(D) Wheat
The metallurgical process in which a metal is obtained in a fused state is called
(A) calcinations
(B) froth floatation
(C) smelting
(D) roasting
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