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you are provided with a monobasic acid , HX with a concentration in the range of 0.5moldm-3. You arerequired to plan and carry out an experiment to determine that exact concentrati
Q. What is Calcinations process? This is fie method of heating the concentrated ore in a limited supply of air to a high temperature but under the fusion temperature. In calcin
The number of quantum numbers required to describe an electron in an atom completely is: (1) 1 (2) 2 (3) 3 (4) 4 Ans: 4
hitorff method
Aluminium utensils should not be kept in water overnight.Give reason
Dual nature of particles was proposed by: (1) Heisenberg (2) Lowry (3) de-Broglie (4) Schrodinger Ans:de-Broglie
why is the mass of acid measured not the volume?
The energy required to dislodge electron from excited isolated H-atom, IE 1 = 13.6 eV is: (1) = 13.6eV (2) > 13.6eV (3) 3.4 eV
Uses of Iodoform or tri-iodomethane (a) Iodoform is utilized as a fire extinguisher under the name pyrene. Dense vapours form a protective layer on the burning objects and avoi
A tank contains 50 gal of a solution of NaCl in water (20% wt). To wash the tank, we supply fresh water at 10 gal/min and drain the tank at the constant rate of 10 gal/min. Determi
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