List of top Chemistry Questions

Determine the spin-only magnetic moment value for a central divalent manganese gaseous ion (\( \text{Mn}^{2+} \)) based on its d-orbital electron distribution. (Atomic Number of \( \text{Mn} = 25 \))

Which of the following carbonyl compounds will undergo a self-oxidation and self-reduction reaction (Cannizzaro Reaction) when treated with a concentrated solution of a strong base (\( \text{NaOH} \))?

A first-order reaction has a specific rate constant (\( k \)) equal to \( 2.303 \times 10^{-3} \text{ s}^{-1} \). Calculate the exact time required for the initial concentration of the reactant to be reduced to exactly \( \frac{1}{10} \)th of its original value.

Which of the following biomolecules acts as the genetic material in most organisms?

The half-life of a first order reaction is 1386 s. The rate constant \(k\) is:

Which of the following compounds can show metamerism?

The compound which is most basic in gaseous phase is:

Which of the following compounds gives a positive Hinsberg test and forms a soluble sulphonamide?

Among the following, the compound having the lowest value of \(pK_a\) is:

Which of the following compounds has the highest boiling point?

Lucas reagent gives immediate turbidity with:

Among the following amines, the strongest base in aqueous solution is: \[ \text{NH}_3,\; \text{CH}_3\text{NH}_2,\; (\text{CH}_3)_2\text{NH},\; (\text{CH}_3)_3\text{N} \]

Arrange the following compounds in increasing order of acidic strength: \[ \text{Phenol, Water, Propan-1-ol, Propan-2-ol} \]

Which statement about physical chemistry numericals in CUET is generally correct?

The rate of a reaction doubles when concentration of reactant is doubled. The order of reaction is:

The shape of \( [Ni(CN)_4]^{2- \) is:}

Which of the following complexes is diamagnetic?

For a first-order reaction, the half-life is given by \( t_{1/2} = \dfrac{0.693}{k} \). Which conclusion is correct?

Aldol condensation is shown by compounds containing:

Semicarbazide is commonly used to identify:

The magnetic moment of a complex having 3 unpaired electrons is closest to: \[ \mu = \sqrt{n(n+2)}\ \text{BM} \]

In the actinoid series, which oxidation state is the most stable for most actinoids?