Name the principal ore of tin or lead, Name the principal ore of tin or lea...

Name the principal ore of tin or lead. Describe the different steps (along with equationsfor the reactions) involved in the extraction of the metal from the ore named. Name

Which one pair of atoms or ions will have same configuration, Which one pai...

Which one pair of atoms or ions will have same configuration: (1) F + ans Ne      (2)  Li + He -       (3) C l - and Ar            (4) Na and K Ans: Cl - an

Calculate the evaporator pressure and rate of heat, A liquid stream contain...

A liquid stream containing half n-hexane and half n-pentane at 80°C and 5 atm is fed at a rate of 100 mol/hr to a flash evaporator operating at pressure (P) and 65°C. The decrease

Metallic bonding,

Determine the uniqueness of carbon, Q. Determine the Uniqueness of Carbon? ...

Q. Determine the Uniqueness of Carbon? Ans. Carbon forms a very large number of compounds--over 4,000,000. This is far more than the number of compounds of all other eleme

Third law of thermodynamics, what are the limitations of third law of therm...

what are the limitations of third law of thermodynamics. what is thermodynamics third law.

Visualisation of hybrid orbitals - c atomic orbitals, Visualisation of hybr...

Visualisation of hybrid orbitals -C atomic orbitals Hybrid orbitals are the result of a model which combines atomic orbitals on a single atom in the ways that lead to a new se

Perfluorocarbons (pfcs) - hydrocarbon, Perfluorocarbons (PFCs): Perfluo...

Perfluorocarbons (PFCs): Perfluorocarbons (C n F 2n+2 ) are acquired by controlled fluorination of vapourized alkanes diluted along with nitrogen gas in the existence of a cata

Teaching methods in chemistry, list the advantage and disadvantage teaching...

list the advantage and disadvantage teaching methods in chemistry

Number of unpaired electrons, Number of unpaired electrons in 1s 2 2s 2 2...

Number of unpaired electrons in 1s 2 2s 2 2p 3    is: (1) 2        (2) 0       (3) 3              (4) 1 Ans: 3