Which of the following statement is correct?
Heisenberg uncertainty principle can be applied to all the objects and for macroscopic objects the uncertainty is extremely large
Azimuthal Quantum number explains about spatial orientation of orbital
Photon has momentum as well as wavelength, but electrons do not have momentum and wavelength
In photoelectric effect if frequency $\mathrm{v}>v_o$, then photoelectrons are ejected with certain kinetic energy
Which of the following is always true about a spontaneous cell reaction in a galvanic cell?
$E_{\text {cell }}^o> 0 ; \Delta G^o<0 ; Q_C< K_C$
$E_{\text {cell }}^o=0 ; \Delta G^o<0 ; Q_C=K_C$
$E_{\text {cell }}^o< 0 ; \Delta G^o>0 ; Q_C< K_C$
$ E_{\text {cell }}^o>0 ; \Delta G^o<0 ; Q_C>K_C$
Resistance of 0.2 M solution of an electrolyte is $50 \Omega$. The conductivity of the solution is $1.3 \mathrm{Sm}^{-1}$. If the resistance of 0.4 M solution of the same electrolyte is $260 \Omega$, its molar conductivity is:
$6.25 \times 10^{-3} \mathrm{Sm}^2 \mathrm{~mol}^{-1}$
$62.5 \times 10^{-4} \mathrm{Sm}^2 \mathrm{~mol}^{-1}$
$6.25 \times 10^{-4} \mathrm{Sm}^2 \mathrm{~mol}^{-1}$
$625 \times 10^{-4} \mathrm{Sm}^2 \mathrm{~mol}^{-1}$
$$ \begin{aligned} &\text { Identify products }\left[\mathbf{P}_{\mathbf{1}}\right] \text { and }\left[\mathbf{P}_{\mathbf{2}}\right] \text { formed when Benzonitrile undergoes the following reactions. }\\ &\text { Benzo nitrile } \xrightarrow[\text { (ii) } \mathrm{H}_3 \mathrm{O}^{+}]{\text {(i) } \mathrm{SnCl}_2 / \mathrm{HCl} / \text { ether }}[\mathrm{X}] \end{aligned} $$

$$ \left[\mathrm{P}_1\right] \text { Phenol and }\left[\mathrm{P}_2\right] \text { Sodium benzoate } $$
$$ \left[\mathrm{P}_1\right] \text { Benzoyl chloride. and }\left[\mathrm{P}_2\right] \text { Acetophenone } $$
$$ \left[P_1\right] \text { Acetophenone. } \quad \text { and } \quad\left[P_2\right] \text { Benzoic acid } $$
$$ \left[\mathrm{P}_1\right] \alpha \text {-Hydroxy phenylacetic acid and }\left[\mathrm{P}_2\right] \text { Benzyl alcohol } $$
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