atomic structure, Chemistry

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what is the mass of a proton and electron

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The interatomic distances in H 2 and Cl 2 molecules are 74 and 198 pm respectively. The bond length of HCl  is : (1) 272 pm                                          (2) 1

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Calculate de-Broglie wavelength of an electron travelling at 1% of the speed of light: (1) 2.73 x 10- 24                (2)  2.42 x 10 -10 (3)  242.2x 10- 10

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The sulphate of a metal has the formula M 2 (SO 4 ) 3 .   The formula for its phosphate will be: (1) M(HPO 4 ) 2                                           (2) M 3 (PO

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Q. Detect the presence for sesame oil and linseed oil? To detect the presence for sesame oil, linseed oil, argemone oil, mineral oil and hydrocyanic acid. After undertaking

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Eudiometry, #question50 ml of a mixture of NH3 and H2 was completely decomp...

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Determine concentrations of solutions, Q.How can we determine Concentration...

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