Which of the following is commonly called a 'poly-amide'?
A). Terylene
B). Nylon
C). Rayon
D). Orlon
1. Angle of friction and angle of repose are
2. The gas used for artificial fruit ripening of green fruit is
3. German silver an alloy does not contain the metal
4. Water is a good solvent of ionic salts because:
6. Which of the following is the petroleum wax ?
7. Inheritance of total colour-blindness is
8. A bone is distinguished from cartilage by the presence of
9. The instrument for measuring intensity of earthquakes is called