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The mass to charge ratio (M/e) for a cation is 1.5×10^−8 kg/C .What is the mass (in gm) of this cation? The mass to charge ratio (M/e) for a cation is 1.5×10^−8 kg/C .What is the mass (in gm) of this cation? November 10, 2020 Category: Chapter 2 - Atomic Structure (Level 1 and Level [...]

In general, the properties that decrease and increase down a group in the periodic table, respectively, are (a) Electronegativity and electron gain enthalpy (b) Electronegativity and atomic radius are (a) Electronegativity and electron gain enthalpy (b) Electronegativity and atomic radius in general respectively the properties that decrease and increase down a group in the periodic [...]

The group having isoelectronic species si (a) O-, F-, Na, Mg+ (b) O2-, F-, Na, Mg 2+ (c) O-, F-, Na+, Mg 2+ (d) O2-, F-, Na+, Mg 2+ F Mg 2+ Mg 2+ (c) O- Mg 2+ (d) O2- Mg+ (b) O2- Na The group having isoelectronic species si (a) O- November 10, 2020 [...]

The ionic radii (in A) of N 3-, O 2- and F – are respectively (a) 1.36, 1.40 and 1.71 (b) 1.36, 1.71 and 1.40 (c) 1.71, 1.40 and 1.36 1.40 and 1.36 1.40 and 1.71 (b) 1.36 1.71 and 1.40 (c) 1.71 O 2- and F - are respectively (a) 1.36 The ionic radii [...]

Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S , Se and Ar Ba S Se and Ar Which of the following represents the correct order of increasing first ionization enthalpy for Ca November 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) [...]

Identify the correct order of acidic strengths of CO2, CuO, CaO, H2O (a) CaO < CuO < H2O < CO2 (b) H2O < CuO < CaO < CO2 CaO CuO H2O (a) CaO < CuO < H2O < CO2 (b) H2O < CuO < CaO < CO2 Identify the correct order of acidic strengths of [...]

The set representing the correct order of first ionisation potential is (a) K > Na > Li (b) Be > Mg > Ca The set representing the correct order of first ionisation potential is (a) K > Na > Li (b) Be > Mg > Ca November 10, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

Assertion : The first ionization energy of Be is greater than that of B Reason : 2p-orbital is lower in energy than 2s Assertion : The first ionization energy of Be is greater than that of B Reason : 2p-orbital is lower in energy than 2s November 10, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

Amongst H20, H2S, H2Se and H2Te, the one with the highest boiling point is (a) H20 because of hydrogen bonding (b) H2Te because of higher molecular weight Amongst H20 H2S H2Se and H2Te the one with the highest boiling point is (a) H20 because of hydrogen bonding (b) H2Te because of higher molecular weight November [...]

The correct order of acidic strength is (a) Cl2O7 > SO2 > P4O10 (b) CO2 > N2O5 > SO 3 (c) Na2O > MgO > Al2O3 The correct order of acidic strength is (a) Cl2O7 > SO2 > P4O10 (b) CO2 > N2O5 > SO 3 (c) Na2O > MgO > Al2O3 November 10, 2020 [...]