CHEMISTRY ONE LINER SET 32

CHEMISTRY ONE LINER SET 32

1. The heavier silicates named ‘Sima’ or silica + magnesium are most abundant in which layer?
Crust
 
2. With which period do we associate the ‘microlith’ implements? Mesolithic
 
3. Insectivorous plant generally grow in soil which is deficient in which gas? Nitrogen
 
4. Which compound can not be used as nitrogenous fertilizer? HNO3
 
5. Which is a non-ferrous metal? Aluminium
 
6. DC current can be controlled by which component? Resistance
 
7. Sodium metal is kept under which liquid? Kerosene
 
8. Which naturally occurring element in the rice husk makes it termite resistant? Silicon
 
9. What is a powerful eye irritant present in smog? Sulphur dioxide
 
10. How is the relative permeability of a diamagnetic material? Less than unity