List of top Chemistry Questions asked in CUET (UG)

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

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:

The total number of ions produced from the compound \(\text{Cr}(\text{NH}_3)_6]\text{Cl}_3\) in aqueous solution is:

Match List-I with List-II:

The reactivity order of the following alkyl halides towards dehydrohalogenation:
(A) R-F
(B) R-Br
(C) R-Cl
(D) R-I
Choose the correct answer from the options given below:

The correct structure of dipeptide, Gly-Ala (glycyl alanine) is:

In the electrolysis of alumina to obtain aluminium metal, cryolite is added mainly to:

The total number of sigma bonds in P$_4$O$_{10}$ is:

Identify the correct order of organic compounds in the following chemical reaction:

(A) CH₃MgBr
(B) CH₃Br
(C) CH₃Cl
(D) CH₄
Choose the correct answer from the options given below:

Match List-I with List-II:

Choose the correct answer from the options given below:

Which metal is the most powerful reducing agent in aqueous solution?

Which of the following ions will be coloured in the aqueous solution?
(A) Ti³⁺
(B) Nb³⁺
(C) Cu⁺
(D) Y³⁺
Choose the correct answer from the options given below:

Although chlorine is electron-withdrawing, it is ortho- and para-directing in electrophilic substitution because • (A) Chlorine withdraws electrons through inductive effect.
(B) Chlorine destabilizes the intermediate carbocation formed during electrophilic sub-stitution.
(C) Chlorine accepts electrons through resonance
(D) Chlorine releases electrons through resonance.
Choose the correct answer from the options given below:

Vapour pressures of pure liquids 'A' and 'D' are 500 mm Hg and 800 mm Hg, respectively.The binary solution of ’A’ and ’D’ boils at 50◦C and 700 mm Hg pressure.The mole percentage of D in the solution is:

If 75$\%$ of a first-order reaction gets completed in 32 minutes, the time taken for 50$\%$ completion of this reaction is:

The spin-only magnetic moment of Hexacyanomanganate(II) ion is.........BM

What is the numerical value of one Faraday in Coulombs?

Which among the following is a trihydric alcohol?

For an SN₂ reaction, arrange the following alkyl halides in increasing order of reactivity:
(A) CH₃CH₂CH₂CH₂
(B) CH₃CH₂CH(Br)CH₃
(C) (CH₃)₃
(D) (CH₃)₂CHCH₂

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 of the following is/are the bases of DNA?
(A) Adenine
(B) Uracil
(C) Thymine
(D) Cytosine

What is the major product of Carbylamine reaction?

Match List-I with List-II:

Arrange the following acids in increasing order of their acidic strengths: HCOOH, FCH₂COOH, NO₂CH₂COOH, ClCH₂COOH

In the Etard reaction, the final product is