List of top Chemistry Questions asked in Punjab PMET

The functional groups present in salol are

The raw material used in nylon-$6$ is

The atomic number of an element $ M $ is $26R$ . How many electrons are present in the M-shell of the element in its $M^{3+}$ state?

Which one of the following reactions is called Rosemond reaction?

Which of the following is the decreasing order of boiling points of $ V $ group hydrides?

A mixture of amylose and amylopectin is called

Disperse phase and dispersion medium in butter are respectively

What is the wave number of $4^{th}$ line in Balmer series of hydrogen spectrum? $(R=1,09,677\,cm^{-1})$

Which of the following has $p_{\pi}-d_{\pi}$ bonding

$1\, M$ and $2.5\,L\,NaOH$ solution mixed with another $0.5\,M$ and $ 3\,L\,NaOH$ solution. Then find out molarity of resultant solution

25 g of $MCl_4$ contains 0.5 mole chlorine then its molecular weight is

Which has highest pH?

Solution of $0.1\, N\, NH _{4} OH$ and $0.1\, N\, NH _{4} Cl$ has $pH 9.25$, then find out $pK _{ b }$ of $NH _{4} OH$.

Solubility of $M X_{2}$-type electrolytes is $0.5 \times 10^{-4}$ $mol / L$ Then find out $K_{s p}$ of electrolytes

Reaction $BaO _{2}( s ) \rightleftharpoons BaO ( s )+ O _{2}(g)$ . In equilibrium condition, pressure of $O_{2}$ depends on

Which is not true statement?

Atomic number of $Cr$ and $Fe$ are respectively $24$ and $26$, which of the following is paramagnetic with the spin of electron :-

An atom has electronic configuration $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{3} 4 s^{2}$, you will place it in

$2$ mole of ideal gas at $ 27^{\circ}C$ temperature is expanded reversibly from $2\,L$ to $20\,L$ . Find entropy change $(R=2\,cal/mol\,K)$

In a closed insulated container a liquid is stirred with a paddle to increase the temperature, which of the following is true?

Unit of entropy is

van der Waals real gas, act as an ideal gas, at which condition?

In hydrogen atom, energy of first excited state is $ -3.4\,eV$ . Then $KE$ of same orbit of hydrogen atom is

Which of the following metals is most reactive towards water?

Which of the following statements is incorrect?