List of top Chemistry Questions asked in CUET (PG)

IUPAC name of the following compound is:

Natural Mechanism in human body to inhibit the heavy metal ion poisoning is by:

The Interhalogen compound used in the estimation of iodine number in fats and oils is:

Find the product X, Y in the following reaction:

The Radial wave function for 2p orbital is:

In metal carbonyl, IR absorption can distinguish nature of CO because:

Using the Pourbaix Diagram for Iron, choose the Incorrect statement:

Which of the following organometallic complex do NOT OBEY 18 EAN Rule?

What type of bonding is present in clathrate compounds?

Match List - I (Compounds) with List - II (Applications): (A) Silicones, (B) Boranzines, (C) Phosphazenes, (D) Poly siloxanes

The element with highest Electron Affinity among Group 16 is:

For Schrodinger Wave Equation $\nabla^{2}\psi+\frac{8\pi^{2}m}{h^{2}}(E-V)\psi=0$, an acceptable solution does NOT possess which of the following property?}

Match List - I (Compounds) with List - II (Hybridization and no. of L.P.): (A) $SF_{4}$, (B) $ClF_{3}$, (C) $H_{2}O$, (D) $NH_{3}$}

Assertion (A): In $[Ti(H_{2}O)_{6}]^{3+}$ electronic spectra the observed absorption is unsymmetrical appears to be result of more than one absorption bands. Reason (R): Due to Jahn Teller effect energy of $d_{xy}$ is lowered so shown electronic jump $d_{xy}^{1} \rightarrow d_{x^{2}-y^{2}}$ and $d_{xy}^{1} \rightarrow d_{z^{2}}$ so give rise two absorption bands.}

Assertion (A): He and Ne do not form clathrates. Reason (R): He and Ne can be separated from Ar, Kr and Xe using quinol from the mixture of these gas.

Match List - I (Compounds) with List - II (Geometry): (A) $XeF_{2}$, (B) $XeF_{4}$, (C) $XeF_{6}$, (D) $XeO_{3}$}

Assertion (A): In $B_{2}H_{6}$, two bridging H atoms prevent the rotation between B atoms. Reason (R): Terminal B-H bonds are normal covalent bonds i.e. two centre two electron ($2C-2e$) bonds.}

Assertion (A): $Na^{+}(C_{5}H_{11})^{-}$ is more stable than $Na^{+}(C_{5}H_{5})^{-}$. Reason (R): $C_{5}H_{5}$ readily accept electron to become 6-electron aromatic $C_{5}H_{5}^{-}$.}

The correct sequence of Extraction of Lanthanoids from monazite sand is: (A) Treat with cold water, (B) Dilute and adjust pH in alkaline range, (C) Digest with Conc. $H_{2}SO_{4}$ at $200^{\circ}C$, (D) Separation by ion Exchange method, (E) Add $Na_{2}SO_{4}$}

Arrange the following ligands as per increasing hepticity: A. Allyl, B. Butadiene, C. Phenyl, D. Tropillium, E. Cyclooctatriene.

Arrange the following in increasing order of electron affinity: (A) F, (B) Cl, (C) Br, (D) I, (E) At

Arrange the following in increasing order of spin only magnetic movement: (A) $Co^{2+}$, (B) $Ti^{3+}$, (C) $Ti^{2+}$, (D) $Fe^{2+}$, (E) $Sc^{3+}$}

IR absorption spectra of metal carbonyl determine: A. Geometry of mononuclear metal carbonyls, B. Determine bond order of CO bond, C. Differentiating between terminal and bridging CO, D. Enatiomerism in metal carbonyls, E. Study of Reaction Rates of Substitution reactions.

Choose the paramagnetic species: A. $O_{2}^{2-}$, B. $NO^{+}$, C. $O_{2}$, D. $CO^{+}$, E. NO.}

Choose the common features of VBT and MOT: A. Resonance, B. Energy of overlapping orbitals of bonding atoms should be comparable, C. Paramagnetic behaviour of $O_{2}$, D. Symmetry of orbitals of bonding atoms.}