Chemistry Test ...

If a \(Zn ^{2+}/ Zn\) electrode is diluted \(100\) times, then the emf will show:

Which of the following statement is true regarding Molar conductivity?

The density of \(3 \mathrm{M}\) solution of \(\mathrm{NaCl}\) is \(1.0 \mathrm{gmL}^{-1}\).

Molality of the solution is \(\qquad\) \(\times 10^{-2} \mathrm{~m}\) (Nearest integer).

Given: Molar mass of \(\mathrm{Na}\) and \(\mathrm{C} 1\) is 23 and \(35.5 \mathrm{~g} \mathrm{~mol}^{-1}\) respectively.

The wavelength of an electron of kinetic energy \(4.50 \times 10^{-29} \mathrm{~J}\) is \(\qquad\) \(\times 10^{-5} \mathrm{~m}\). (Nearest integer) Given: mass of electron is \(9 \times 10^{-31} \mathrm{~kg}, \mathrm{~h}=6.6 \times 10^{-34} \mathrm{~J} \mathrm{~s}\)

Carbon belongs to the second period and Group 14. Silicon belongs to the third period and Group 14. If atomic number of carbon is 6, the atomic number of silicon is:

The structure of IF₇ is:

In nitroprusside ion, the iron and NO exist as Fe(II) and \(NO^{+}\) rather than Fe(III) and NO. These forms can be distinguished by:

Chemical name of Gammaxane is:

Equilibrium constant for two complexes are

\(\mathrm{A}: \mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right] 2.6 \times 10^{37}\) (for dissociation)

\(\mathrm{B}: \mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right] 1.9 \times 10^{17}\) (for dissociation)

The Aufbau Principle states that____________.