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Explain the process of Grading and Sieving
Grading: Grading consists of separating the sound kernels from chaff and impurities,and may be achieved by sieving or winnowing. Sieving: Impurities are separated on the basis of their differences in size from the kernels. Hand sieves are usually used singly. The simpler machines will have two sieves: one with oversized holes (which retain large impurities and let the grain kernel pass through) and the other one with undersized holes (which retain the kernels but allow smaller impurities to pass through).
The covalency of nitrogen in HNO 3 is: (1) 0 (2) 3 (3) 4 (4) 5 Ans: 5
what is fractional distillation
Perfect gases are assumed to be comprised of infinitesimally small particles and to interact only at the point of collision. At intermediate pressures, the volume of the gas become
Q. What are Trioxides? The selenium and tellurium trioxides are not stable, SO 2 , is the only important trioxide in the group. Its preparation has been described above. Sul
The shape of P -orbital is : (1) Elliptical (2) Spherical (3) Dumb-bell (4) Complex geometrical Ans: Dumb-bell
1. Discuss how such discoveries, technological advancement and breakthroughs were achieved and the person behind this advancement, it can be local or international. 2. List the ma
Describe Conformation energy profile -Ethane Conformation energy profile for ethane
A student wishes to prepare 250ml of a 0.20mol/L solution of oxalic acid (COOH)2.2H2O. a) Calculate the amount (no.of moles) of oxalic acid required. b) Calculate the mass of oxali
Colloids are either positively charged or negatively charged. But What are the various factors responsible for charge on the colloidal sols?
which compounds will dissolve in alkaline solution after it has undergone reaction with hinsberg reagent
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