PREVIEW 1
Which of the following forms regarding the structure of a DNA molecule is true?
PARTIAL RECONSTRUCTION
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PREVIEW 1
Which of the following forms regarding the structure of a DNA molecule is true?
PREVIEW 2
A compound is formed by two elements X and Y, atoms of the element Y as anion make ccp and those of the element X as cation occupy all the octahedral voids. What is the formula of the compound ?
PREVIEW 3
The solubility product of sparingly soluble salt BA at $25{\,}^{\circ}$C is $6.0\times 10^{-13}$. What is the solubility of it?