Chemistry-
General
Easy
Question
The energies E1 and E2 of two radiations are 25 eV and 50 eV respectively. The relation between their wavelengths i.e. λ and λ will be:
The correct answer is:
Related Questions to study
chemistry-
The first Lyman transition in the hydrogen spectrum has ΔE =10.2 eV. The same energy change is observed in the second Balmer transition of -
The first Lyman transition in the hydrogen spectrum has ΔE =10.2 eV. The same energy change is observed in the second Balmer transition of -
chemistry-General
chemistry-
Which of the following substance will have highest b.p.t.?
Which of the following substance will have highest b.p.t.?
chemistry-General
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Which of the following has the lowest melting point-
Which of the following has the lowest melting point-
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The electronic structure of four elements a,b,c and d are a=1s2,b =1s2,2s22p2,c =1s22s22p5,d=1s2 2s22p6 The tendency to form electrovalent bond is greatest in-
The electronic structure of four elements a,b,c and d are a=1s2,b =1s2,2s22p2,c =1s22s22p5,d=1s2 2s22p6 The tendency to form electrovalent bond is greatest in-
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In which of the following pair the boilling point of first compound is not more than the second:
In which of the following pair the boilling point of first compound is not more than the second:
chemistry-General
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Compound of a metal ‘M’ is M2O3. The formula of its nitride will be-
Compound of a metal ‘M’ is M2O3. The formula of its nitride will be-
chemistry-General
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The compound formed by which of the following pair of ions will have lowest melting
point:
The compound formed by which of the following pair of ions will have lowest melting
point:
chemistry-General
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Formula of a metal oxide is MO, formula of its phosphate will be-
Formula of a metal oxide is MO, formula of its phosphate will be-
chemistry-General
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In which of the following solvents, KI has highest solubility? The dielectric constant() of each liquid is given in parentheses:
In which of the following solvents, KI has highest solubility? The dielectric constant() of each liquid is given in parentheses:
chemistry-General
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Which of the molecule is not hypovalent but completes its octet-
Which of the molecule is not hypovalent but completes its octet-
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Which of the following compound does not follow octet rule:
Which of the following compound does not follow octet rule:
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Which is not an exception to octet rule?
Which is not an exception to octet rule?
chemistry-General
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Which of the following pair has electron defficient compounds-
Which of the following pair has electron defficient compounds-
chemistry-General
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Assertion: Maximum number of electrons presentin1s-orbital are2.
Reason: Maximum number of electrons in any orbit is given by 2n2,where n is principal quantum number.
Assertion: Maximum number of electrons presentin1s-orbital are2.
Reason: Maximum number of electrons in any orbit is given by 2n2,where n is principal quantum number.
chemistry-General
chemistry-
Assertion:Inhydrogenenergyof4sismore than3d.
Reason: An orbitals with lower value of (n+l) has smaller energy than the orbital with higher value of (n+l).
Assertion:Inhydrogenenergyof4sismore than3d.
Reason: An orbitals with lower value of (n+l) has smaller energy than the orbital with higher value of (n+l).
chemistry-General
