List of top Questions asked in COMEDK UGET

The reactions taking place with 2 - Phenyl - 2 - bromopropane as the starting material is shown below. Identify [A] and [B] formed in the reaction.
C\textsubscript{6}H\textsubscript{5} - C(Br)C\textsubscript{2}H\textsubscript{5} \xrightarrow{\text{KOH Alcoholic}} [A]
[A] + HBr $\to$ [B]
The reaction taking place in a galvanic cell is as given
A(s) + B\textsuperscript{2+} (11100\textsuperscript{-3}M) $\rightarrow$ B(s) + A\textsuperscript{2+} (0.1M)
The emf of the cell is +2.651 V. If the standard emf of the cell is +2.71 V, what is the value of X?
Which one of the following will undergo Nucleophilic substitution, by $S_N^1$ mechanism, fastest?
A man grows into a giant such that his height increases to 8 times his original height. Assuming that his density remains the same, the stress in the leg will change by a factor of
The mass number of two nuclei P and Q are 27 and 125 respectively. The ratio of their radii \( R_P : R_Q \) is given by:
The current sensitivity of a galvanometer having 20 divisions is \( 10 \mu A / \text{div} \). If the resistance of the galvanometer is 100Ω, then the value of the resistance to be used to convert this galvanometer into a voltmeter to read up to 1 V is:
In a nuclear reaction, 2 deuteron nuclei combine to form a helium nucleus. The energy released in MeV will be: (Given mass of deuteron = 2.01355 amu and mass of helium nucleus = 4.0028 amu.)
What would be the final product [X] formed when p-Toluene undergoes the following series of reactions?
The energy of an electron in the ground state of Hydrogen atom is $-2.18 \times 10^{-18}$ J. What would be the energy associated with the second excited state of Li$^+$?
Identify the incorrect statement.
Choose the incorrect statement regarding Cellulose.
Which one of the following Coordination entities exhibits Facial and Meridional isomerism?
Arrange the following in the decreasing order of their Dipole moments.
X is an electrolyte with a concentration of 0.04M whose formula is of the type X\(_2\)(A) Y is a non-electrolyte solution with a concentration of 0.2M and has an osmotic pressure equal to P\(_2\) at room temperature. What is the relationship between the Osmotic pressure \(\pi\) of X and P\(_2\)?
Identify the catalyst used in the reaction between iodide and persulphate ions.

Find the correct matches of the substances, given in Column I, from their characteristic properties given in Column II.

A gas taken in a closed vessel is heated from 54°C to 1254°(C) The pressure of the gas becomes __________ times its original pressure \( P_1 \).
Which one of the following correctly represents the decreasing order of acidic nature of the given carboxylic acids:
[A] 2-Hydroxybenzoic acid
[B] Benzoic acid
[C] 3-Hydroxybenzoic acid
[D] 4-Hydroxybenzoic acid
If the depression in freezing point of an aqueous solution containing a solute, which is neither dissociated nor associated, is $aK$ with $K_f = b \ \text{K} \cdot \text{kg mol}^{-1}$, what would be the elevation in boiling point ($X$) for this solution if its $K_b = K \ \text{K} \cdot \text{kg mol}^{-1}$?
The rate constant for a First order reaction at 560 K is $1.5 \times 10^{-6}$ per secon(D) If the reaction is allowed to take place for 20 hours, what percentage of the initial concentration would have converted to products?
Identify the correct statement describing the characteristics of \(C_2\) molecule.
One among the 4 Vitamins belonging to B Complex, can be stored in our body. Identify the Vitamin.
Which one of the following statements is correct?
In the given Redox equation, identify the stoichiometric coefficients w, x, y, and z.
The given equation: \[ \text{ClO}_3^{-} + w\text{Cl}^{-} + x\text{H}^{+} \rightarrow y\text{H}_2\text{O} + z\text{Cl}_2 \]
In the following question, Assertion (A) is given followed by a statement of Reason (R). Choose the correct answer.
Assertion (A): \(\pi (2p_{z}), \pi (2p_{y}), \pi^{*} (2p_{z}), \pi^{*} (2p_{y})\) molecular orbitals have one nodal plane each.
Reason (R): All the molecular orbitals formed by the sideways overlapping have one nodal plane.