A. Oak tree
B. e tree
C. Birch tree
D. Lemon tree
Turpentine (also called spirit of turpentine, oil of turpentine, wood turpentine and colloquially turps) is a fluid obtained by the distillation of resin from live trees, mainly es. It is mainly used as a solvent and as a source of materials for organic synthesis.
A. Osmosis
B. Capillary action
C. Lowering of interfacial tension
D. Diffusion
A. Sodium sulphate
B. Sodium stearate
C. Sodium chloride
D. Sodium nitrate
A. Cast iron
B. Steel
C. Wrought iron
D. Stainless steel
A. Annealing
B. Quenching
C. Tempering
D. Nitriding
A. Azeotrope
B. Conjugate temperature
C. Consolute temperature
D. Eutectic point
A. Hydrogen
B. Chlorine
C. Hydrogen and Helium
D. Neon
A. Oil is very light
B. Oil is volatile
C. Diffusion of oil through the wick
D. Capillary action phenomenon
Capillary action (sometimes capillarity, capillary motion, capillary effect, or wicking) is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity
A. Rene Laennec
B. Steven Sasson
C. Martin Cooper
D. Dave Hyatt
The stethoscope was invented in France in 1816 by René Laennec at the Necker-Enfants Malades Hospital in Paris. It consisted of a wooden tube and was monaural. Laennec invented the stethoscope because he was not comfortable placing his ear directly onto a woman’s chest to listen to her heart.