How many unpaired electron are present, How many unpaired electrons are pre...

How many unpaired electrons are present in Ni 2+   cation  (atomic number = 28): (1) 0        (2) 2        (3) 4        (4) 6 Ans:  2

Find the molar flow rate, 100 mol/hr pentane flows through an adiabatic hea...

100 mol/hr pentane flows through an adiabatic heat exchanger where it is heated isobarically (at 2.5 bar) from 50°C to 250°C. The pentane is heated by contacting pipes filled with

Equilibrium constants, For a general reaction such as: The equilib...

For a general reaction such as: The equilibrium constant is   where the terms [A], [B],...strictly represent activities but are frequently approximated as co

Requirements for the evaluation process, Q. Requirements for the evaluation...

Q. Requirements for the evaluation process? Some of the requirements to be kept in mind for the evaluation of the products are listed herewith: • People in a sensory test a

Periodic table, why lanthanide series is called lanthanide?

why lanthanide series is called lanthanide?

Chromatography, The process of chromatography involves passing a mixture di...

The process of chromatography involves passing a mixture dissolved in the "mobile phase" through a stationary phase, which separates the analyte which is to be measured from the ot

Calorimetry, A solid substance with a mass of 200g is at its melting temper...

A solid substance with a mass of 200g is at its melting temperature in a calorimeter. While the substance changes from a solid to a liquid at the same temperature, the 400-gram mas

Elements of metallic and non metalic, list the physical properties of two e...

list the physical properties of two examples of metallic and non metallic elements

Corrosion theories, what are the corrosion theories???

what are the corrosion theories???

Ionic bond,