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Inorganic Chemistry
When orthophosphoric acid is heated to 600°C, the product formed is :-
(1) PH3
(2) P2O5
(3) H3PO3
(4) HPO3
(1) PH3
(2) P2O5
(3) H3PO3
(4) HPO3
Inorganic Chemistry
Which of the following salt does not give positive chromyl chloride test?
(1) CuCl2
(2) ZnCl2
(3) NH4Cl
(4) HgCl2
(1) CuCl2
(2) ZnCl2
(3) NH4Cl
(4) HgCl2
Inorganic Chemistry
calculate the wavelength(1/m), frequency(hz),and energy(kj/mol) of visible light of wavelength 400
nm.
nm.
Inorganic Chemistry
Calculate the volume ,mass and number of molecules of hydrogen liberated when 299 g of sodium react with excess of water at STP.
Inorganic Chemistry
How many molecules are in 85 liters of AgNO3?
How many cadmium atoms are there in 6.57x 10 to the 23rd power moles?
Please help with these two question need for a test.
How many cadmium atoms are there in 6.57x 10 to the 23rd power moles?
Please help with these two question need for a test.
Inorganic Chemistry
Which of the following changes are classed as a chemical change?
a) The fluorescent green solution formed when brick red ammonium dichromate is placed in water
b) When heated over a bunsen, white zinc oxide turns yellow
c) The blue solution that forms when sulphuric acid is added to copper oxide
d) The purple solution that forms when potassium permanganate is added to water
a) The fluorescent green solution formed when brick red ammonium dichromate is placed in water
b) When heated over a bunsen, white zinc oxide turns yellow
c) The blue solution that forms when sulphuric acid is added to copper oxide
d) The purple solution that forms when potassium permanganate is added to water
Inorganic Chemistry
Calculate the fundamental frequency of H Cl 1 35 bond if its force constant value is 516 N m-1
Inorganic Chemistry
How to purify amine solution that consist of carbon dioxide economically????
Inorganic Chemistry
explain the purification of sulphid ore by froth flotation method.
Inorganic Chemistry
An xray photon of wavelength 0.989 nm strikes a surface. The emitted electron has a kinetic energy of 969eV. What is the binding energy of the electron in kJ/mol?
