Atomic ______________ of an element is a whole number?
Atomic ______________ of an element is a whole number?
A. Weight
B. Number
C. Volume
D. Radius
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Mass number of an atom is the sum of the numbers of_________________?
Mass number of an atom is the sum of the numbers of_________________?A. Neutrons and protons
B. Protons and electrons
C. Neutrons and electrons
D. Both A. & B.The viscosity of water at room temperature may be around one ___________________?
The viscosity of water at room temperature may be around one ___________________?A. Centipoise
B. Poise
C. Stoke
D. Both B. & C.A vapor whose partial pressure is less than its equilibrium vapor pressure is called a ______________ vapor?
A vapor whose partial pressure is less than its equilibrium vapor pressure is called a ______________ vapor?A. Saturated
B. Supersaturated
C. Superheated
D. None of these1 Kcal/kg. °C is equivalent to _______________ BTU/lb. °F ?
1 Kcal/kg. °C is equivalent to _______________ BTU/lb. °F ?A. 1
B. 2.42
C. 4.97
D. None of theseHot metal runner in blast furnace are lined with ______________ bricks?
Hot metal runner in blast furnace are lined with ______________ bricks?A. Silica
B. Carborundum
C. Fireclay
D. MagnesiteIn the reaction, Ca + 2H2O = Ca(OH)2 + H2; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water ? (Atomic weight of calcium = 40) ?
In the reaction, Ca + 2H2O = Ca(OH)2 + H2; what volume (c.c.) of hydrogen at STP would be liberated, when 8 gm of calcium reacts with excess water ? (Atomic weight of calcium = 40) ?A. 4480
B. 2240
C. 1120
D. 0.4