Chemistry and Physics Quiz Questions

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Which species among the given options shows the maximum ionization energy?

3s2 3p3

2s2 2p3

3s2 3p5 (correct)

2s2 2p5

If the successive ionization potentials (I.P.) of an element are given as 10, 20, 200, 300, 500, which electronic configuration corresponds to this element?

2s2 2p6 3s2

2s1

2s2 2p6 3s1 (correct)

2s2 2p2

What is the correct order of second ionization energies (IP2) among the following elements: B, Be, O, N, C, F?

Be < C < B < N < F < O

Be < B < N < O < F < C (correct)

Be < B < C < F < O < N

B < Be < O < N < C < F

Arrange the elements Na, Mg, Al, and Si in increasing order of their first ionization energies.

Na < Mg > Al < Si Signup and view all the answers

Which of the following elements has the maximum electron gain enthalpy?

F Signup and view all the answers

In the first Lyman transition of the hydrogen spectrum, ΔE = 10.2 eV. The same energy change is observed in the second Balmer transition of which ion?

Li+ Signup and view all the answers

How many unpaired electrons are present in the Ni2+ cation with an atomic number of 28?

5 Signup and view all the answers

What is the total number of electrons, protons, and neutrons in 1.7g of NH3?

30 × NA Signup and view all the answers

In the ratio of specific charge of H+1 & He+2, what is the correct ratio?

2 : 1 Signup and view all the answers

How many d-electrons are retained in the Fe+2 ion?

4 Signup and view all the answers

What is the ratio of ionization energy between Li2+ & He+ ions?

None of these Signup and view all the answers

Which molecule will exhibit p-p overlapping?

Chlorine Signup and view all the answers

What is the mass of carbon present in 0.5 mole of K4[Fe(CN)6]?

18 gm Signup and view all the answers

Calculate the mass of Na2SO4.7H2O that contains exactly 6 × 10^23 atoms of oxygen.

61 g Signup and view all the answers

What would be the wavelength of a photon emitted during an electron transition from n = 4 to n = 2 in the hydrogen spectrum?

486 nm Signup and view all the answers

Chemistry and Physics Quiz Questions

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Questions and Answers

Which species among the given options shows the maximum ionization energy?

If the successive ionization potentials (I.P.) of an element are given as 10, 20, 200, 300, 500, which electronic configuration corresponds to this element?

What is the correct order of second ionization energies (IP2) among the following elements: B, Be, O, N, C, F?

Arrange the elements Na, Mg, Al, and Si in increasing order of their first ionization energies.

Which of the following elements has the maximum electron gain enthalpy?

In the first Lyman transition of the hydrogen spectrum, ΔE = 10.2 eV. The same energy change is observed in the second Balmer transition of which ion?

How many unpaired electrons are present in the Ni2+ cation with an atomic number of 28?

What is the total number of electrons, protons, and neutrons in 1.7g of NH3?

In the ratio of specific charge of H+1 & He+2, what is the correct ratio?

How many d-electrons are retained in the Fe+2 ion?

What is the ratio of ionization energy between Li2+ & He+ ions?

Which molecule will exhibit p-p overlapping?

What is the mass of carbon present in 0.5 mole of K4[Fe(CN)6]?

Calculate the mass of Na2SO4.7H2O that contains exactly 6 × 10^23 atoms of oxygen.

What would be the wavelength of a photon emitted during an electron transition from n = 4 to n = 2 in the hydrogen spectrum?

In the absence of Pauli exclusion principle, what could be the electronic configuration of Lithium in its ground state?

When an electron jumps from the L to K shell, what happens?

What is the maximum number of molecules present in 0.5g of H2 gas?

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