List of top Chemistry Questions asked in CUET (UG)

Identify the order of reaction if the rate constant is k=2×10−2s−1:
If 75$\%$ of a first-order reaction gets completed in 32 minutes, the time taken for 50$\%$ completion of this reaction is:
Which among the following compounds show metal excess defect due to anionic vacancy?
In the reaction, (CH3)3C − O − CH3 + HI → Products, CH3OH and (CH3)3CCl are the products and not CH3I and (CH3)3COH. It is because
The oxidation number of Co in complex [Co(H$_2$NCH$_2$CHNH$_2$)$_3$]$_2$(SO$_4$)$_3$ is:
A molecule X associates in a given solvent as per the following equation:
X ⇌ (X)n
For a given concentration of X, the van’t Hoff factor was found to be 0.80 and the
fraction of associated molecules was 0.3. The correct value of ‘n’ is:
What is the overall order of the reaction which has the following rate expression? Rate = k[A]$^\frac{1}{2}$[B]$^\frac{3}{2}$
Match List-I with List-II:
Fibrous Proteins
Arrange the following acids in increasing order of their acidic strengths: HCOOH, FCH₂COOH, NO₂CH₂COOH, ClCH₂COOH
The correct order of increasing boiling points of the following compounds is: Pentan-1-ol, n-Butane, Pentanal, Ethoxyethane
The total number of sigma bonds in P$_4$O$_{10}$ is:
Formaldehyde undergoes Cannizzaro reaction because
(A) It has alpha-hydrogen atom.
(B) It does not have alpha-hydrogen atom.
(C) It does not undergo self-oxidation and reduction on heating with concentrated alkali.
(D) It undergoes self-oxidation and reduction on heating with concentrated alkali.
Which of the following compounds will give the Hell-Volhard-Zelinsky reaction?
The Gattermann-Koch reaction is used in the industrial preparation of benzaldehyde. The electrophile involved in this reaction is
Aniline does not undergo Friedel-Crafts reaction because 1.(A) It forms salt with the Lewis acid catalyst, AlCl3.
2. (B) Nitrogen of aniline acquires negative charge.
3. (C) Nitrogen of aniline acquires positive charge.
4. (D) Nitrogen acts as a strong deactivating group in the further reaction.
Consider the following statements regarding osmotic pressure:
(A) Molar mass of a protein can be determined using the osmotic pressure method.
(B) The osmotic pressure is proportional to the molarity.
(C) Reverse osmosis occurs when a pressure larger than osmotic pressure is applied to the concentrated solution side.
(D) Edema occurs due to retention of water in tissue cells as a result of osmosis.
Choose the correct statements with reference to osmotic pressure:
What will be the increasing order of basic strength of the following compounds: \(\text{C}_2\text{H}_5\text{NH}_2, (\text{C}_2\text{H}_5)_2\text{NH},(\text{C}_2\text{H}_5)_3\text{N},\text{C}_6\text{H}_5\text{NH}_2\)
For SN2 reaction, the increasing order of the reactivity of the following alkyl halides is:
(A) CH3CH2CH2CH2Br (B) CH3CH2CH(Br)CH3   (C) (CH3)3CBr   (D) (CH3)2CHCH2Br
The correct structure of dipeptide, Gly-Ala (glycyl alanine) is:
In the following compounds, what is the increasing order of their reactivity towards nucleophilic addition reactions?
In the following reaction, identify the product D.
chemical reaction
The Cu metal crystallises into fcc lattice with a unit cell edge length of 361 pm. The radius of Cu atom is:
For the reaction 2A₂(g) + ¼X(g) → 2A₂X(g),If the volume is increased to double its value by decreasing the pressure on it. If the reaction is first order with respect to X and second order with respect to A2, the rate of reaction will:
Which among the following is not an Analgesic?
Match List-I with List-II:
Finkelstein reaction