List of top Chemistry Questions asked in CUET (UG)

Match List - I with List- II.

List - I (Salts	List - II (Van't Hoff factor
(A) Mohr's Salt	(I) 3
(B) Blue Vitriol	(II) 8
(C) Lime slake	(III) 2
(D) Alum	(IV) 5

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Inversion of configuration in Alkyl halides takes place:-

Match List - I with List- II.

List - I	List - II
(A) Tranquilizers	(I) Aspirin
(B) Analgesics	(II) Iodoform
(C) Antiseptic	(III) Salvarsan
(D) Antibiotics	(IV) Antidepressant drug

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Vitamin C is also called-

Name the member of the Actinoid Series which is the last element:-

Amino acids have high boiling point because
of the formation of Zwitter ion
of dipolar nature
of strong dipole- dipole interaction
of strong intermolecular forces
of the presence of-COOH and-\(NH_2\) at a-position
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Match List - I with List- II.

List - I	List - II
(A) Invert sugar	(I) \(\alpha\)-D-glucose and \(\alpha\)-D-glucose
(B) Maltose	(II) \(\beta\)-D-galactose and \(\beta\)-D-glucose
(C) Lactose	(III) Branched chain polymer of \(\alpha\)-D-glucose
(D) Amylopectin	(IV) Hydrolysis of sucrose

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Which kind of isomerism is shown by following compounds
M-SCN, M-NCS

The value of magnetic moment for \([CoF_6]^{3-}\) is:

The least basic hydroxide amongst the following would be:-

Most commonly used freon in the industries is

For the solubility of gases in liquid, the correct statement at high temperature is:
A) Solubility of gases increase
B) Value of Hemy's constant (\(k_H\)) increases
C) Solubility of gases decrease
D) Value of \(k_H\) decreases
E) Value of \(k_H\) does not change
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In neutral solution, thiosulphate is oxidised by potassium permanganate to

During peptization the
precipitate breaks up into smaller particles of the size of a colloid
molecules aggregate together to form a colloid
the precipitate adsorb one of the ions of the electrolyte on its surface
precipitate is shaken with the dispersion medium
molecules loses positive and negative charge.
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Values of \(\epsilon^0\) Reduction are given below as:-
\(Sn^{2+} |Sn = -0.14V, Zn^{2+} |Zn = -0.76V, Cr^{3+} |Cr = -0.74V\\Mg^{2+} | Mg = -2.36V\)
The ion which will get deposited at cathode in an electrochemical cell would be

Inversion of cane sugar is an example of

Following reaction takes place in Daniell cell:
\(Zn(s)+Cu^{2+} (aq) \rightarrow Zn^{2+} (aq) + Cu(s); E^0_{cell} = 1.1V\)
Standard Gibbs energy, in this case will be

What would be the expected product when dimethyl ether is treated with HI in excess

IUPAC name of propiophenone is:

The solution which shows positive deviation from Raoult's Law, is the mixture of

The compounds producing Schottky defect, when added to crystals AgCl are-
NaCl
\(CdCl_2\)
\(CaCl_2\)
KCI
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An element with molar mass \(2.7 \times 10^{-2}\) kg/mol forms a cubic unit cell of edge length 405pm. If the density is \(2.7 \times 10^3\) kg/\(m^3\). The nature of the cell is?

Which of the complexes give white ppt when treated with aqueous solution of BaCl₂?
A. [Co(NH₃)₅SO₄]Cl
B. [Co(NH₃)₅Cl]SO₄
C. [Co(NH₃)₅ (NO₂)](NO₂)₂
D. [Co(NH₃)₅ CN] SO₄
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In a colloidal state the particle size of the dispersed phase range between 10³ to 10⁶ pm and colloidal sol is heterogenous in nature. Based on the nature of interaction between the dispersed phase and dispersion medium colloidal sol are classified as lyophilic and lyophobic. Stability of sol is due to presence of charge on the sol particles and the neutralisation of the same is known as coagulation or precipitation. Based on this answer the following.

Certain Aldehydes, Retore and certain alcohol undergo iodoform test. Certain Aldehydes ketones undergo aldol condensation. While certain aldehydes undergo Cannizaro's reaction. Aldehydes responds to tollen reagent and fehling reagent test.