Within a double-stranded DNA molecule, adenine forms hydrogen bonds with thymine, and cytosine forms hydrogen bonds with guanine. What is the significance of the structural arrangement?

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#Question id: 20048

#XL - P Chemistry

Which of the expression given below gives IE of H atoms in terms of Rydberg’s constant (RH)?

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#Question id: 20049

#XL - P Chemistry

One unpaired electron causes magnetic moment of 1.1 B.M. The magnetic moment of Fe⁺² ion is

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#Question id: 20050

#XL - P Chemistry

If numerical value of mass and velocity are equal then de-Broglie wave length in terms of K.E.

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#Question id: 20053

#XL - P Chemistry

Atoms complete octet in valence shell electron during the bond formation. This postulate was proposed by which scientist ?

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#Question id: 20054

#XL - P Chemistry

Crystal formation is which type of reaction ?

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#Question id: 20055

#XL - P Chemistry

Lattice energy of ionic compound depends upon which factor ?