Hamad Chemistry Basic Concept 04/03/2021 A. Uni-negative B. Uni-positive C. Di-negative D. Di-positive Related Mcqs: The number of peaks obtained in mass spectrometry shows____________________?A. Relative abundance B. Average mass of element C. Number of isotopes D. Relative isotopic mass... When cationic molecular ions are allowed to pass through strong magnetic field in mass spectrometer which of the following ions is fallen__________________?A. lighter B. intermediate C. heavier D. are collected at same time... The nucleus of an atom of every element will always contain____________________?A. neutrons B. protons and electrons C. protons D. protons and neutrons... Which of the following is the formula of chrome red ?A. Pb3 O4 B. 2Pb CO3 – Pb (OH)2 C. Pb Cr O4 – Pb (OH)2 D. Pb2O... Solubility of CaF2 is 2.0×10-4 gdm-3 then Ksp of CaF2 is_______________?A. 4.0 x 10-8 B. 3.2 x 10-11 C. 2.0 x 10-8 D. 4.0 x 10-12...
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