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What are photochemical reactions? Explain the mechanism of the photo- chemical reaction occurring among hydrogen and chlorine gas.
For ns orbital, the magnetic quantum number has value: (1) 2 (2) 4 (3) - 1 (4) 0 Ans:0
Visible range of hydrogen spectrum will contain the following series: (1) Pfund (2) Lyman (3) Balmer (4) Brackett Ans: Balmer
the density of 2 molal aqueous solution of NaOH is 1.10g/L. Calculate the molarity of the solution.
Fundamentals of Acids and Bases Bronsted-Lowry theory: A Bronsted acid is a (proton) + donor, whilst a Brønsted base is a proton acceptor. An acid-base reaction involves t
Electrovalent bond formation depends on: (1) Ionization energy (2) Electron affinity (3) Lattice energy (4) All the three above Ans: All the three above
For a given value of quantum number l , the number of allowed values of is given by: (1) l+2 (2) 2l+2 (3) 2l+ 1 (4)
How many grams of NaCl will be produced when 2235 g of HCl are neutralized by an excess of NaOH according to the equation below? HCl + NaOH ---> H2O + NaCl
laws of chemical combination
A sub-shell l= 2 can take how many electrons: (1) 3 (2) 10 (3) 5 (4) 6 Ans: 10
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