List of top Chemistry Questions asked in Punjab PMET

Which of the following statements is incorrect?

Which of the following statements is incorrect?

The stability of complexes of $ C{{u}^{2+}},\,\,N{{i}^{2+}},\,\,C{{o}^{2+}} $ and $ F{{e}^{2+}} $ varies in the order:

Which of the following molecules has pentagonal bipyramidal shape?

The acidity of hydrides of $O , S , Se$, Te varies in the order :

The relative Lewis acid character of boron trihalides is in the order:

Which of the following statements is incorrect?

The bond order of $ O_{2}^{+},\,\,{{O}_{2}},\,\,O_{2}^{2-} $ and $ O_{2}^{-} $ varies in the order:

Molecular orbital electronic configuration for $' X'$ anion is : $K K^{*}(\sigma 2 s)^{2}\left(\sigma^{*} 2 s\right)^{2}\left(\pi 2 p_{x}\right)^{2}\left(\pi 2 p_{y}\right)^{2}\left(\sigma 2 p_{z}\right)^{2}$ $\left(\pi^{*} 2 p_{x}\right)^{1}$. The anion ' $X$' is :

The mass of a photon with wavelength $ 3.6\,??$ is:

Which of the following compounds is the strongest acid?

An electron with values $4, 2, -2$ and $+1/2$ for the set of four quantum numbers $ n,\,\,l,\,\,{{m}_{l}} $ and $ s $ respectively, belongs to:

The magnitude of any physical quantity

For reversible process, the value of $\Delta S$ is gives by the expression:

When pressure is applied to the equilibrium system ice $\rightleftharpoons$ water. Which of the following phenomenon will happen ?

A current of strength $2.5$ amp was passed through $CuSO _{4}$ solution for 6 minutes $26$ seconds. The amount of copper deposited is : (At. wt. of $Cu =63.5,1\, F =96500$ coulomb $)$

Degree of dissociation of $NH _{4} OH$ in water is $1.8 \times 10^{-5}$, then hydrolysis constant of $NH _{4} Cl$ is :

The charge on an electron was discovered by:

What amount of water is added in $40\, ml$ of $NaOH (0.1\, N )$ which is neutralized by $50\, ml$ of $HCl (0.2\, N )$ ?

For $A \longrightarrow B, \Delta H=4\, Cal\, mol ^{-1}\,\Delta S=10\, Cal\, mol ^{-1}\, K ^{-1}$ reaction is spontaneous when temperature can be :

Slope between $ PV $ and $ P $ at constant temperature is:

Unit of rate constant of zero order reaction is:

Mole fraction of a solute in benzene is $0.2$ then find molality of solute:

Which of the following is more acidic in nature?

The alcohol manufactured from water gas is