AIEEE 2012 PYQ Mock Test

The incorrect expression among the following is:

The density of a solution prepared by dissolving $120\text{g}$ of urea (mol. mass $=60\text{u}$) in $1000\text{g}$ of water is $1.15\text{g/mL}$. The molarity of this solution is:

The species which can best serve as an initiator for the cationic polymerization is:

Which of the following on thermal decomposition yields a basic as well as an acidic oxide?

The standard reduction potentials for ${\text{Zn}}^{2+}/\text{Zn}$, ${\text{Ni}}^{2+}/\text{Ni}$, and ${\text{Fe}}^{2+}/\text{Fe}$ are $-0.76$, $-0.23$ and $-0.44\text{V}$ respectively. The reaction $\text{X}+{\text{Y}}^{2+}\to {\text{X}}^{2+}+\text{Y}$ will be spontaneous when: