List of top Chemistry Questions asked in CUET (UG)

In the following compounds, what is the increasing order of their reactivity towards nucleophilic addition reactions?

The correct statement/statements from the options given below is/are:
(A) Diazonium salts of aromatic amines are less stable than diazonium salts of aliphatic amines.
(B) Ethylamine is insoluble in water.
(C) Gabriel phthalimide synthesis can be used to prepare primary amines.
(D) Because of +R-effect of–NH2 group, aniline will undergo Friedel-Crafts acylation reaction.
Choose the correct answer from the options given below:

Which among the following chemicals is used for control of humidity?

Molal elevation constant is also known as:

Which term of molar conductivity is used when the concentration of electrolyte approaches zero?

Which term from the following is not related to adsorption?

The central atom/ions in coordination compounds are referred to as:

The oxidation number of Co in complex [Co(H$_2$NCH$_2$CHNH$_2$)$_3$]$_2$(SO$_4$)$_3$ is:

What is the other term used for thermal reductions?

Match List-I with List-II:

List-I (Amino Acid)	List-II (Nature of Amino Acid)
(A) Valine	(I) Basic amino acid
(B) Glycine	(II) Neutral optically active amino acid
(C) Lysine	(III) Acidic amino acid
(D) Glutamic acid	(IV) Neutral optically inactive amino acid

Choose the correct answer from the options given below:

Arrange the following in increasing order of their osmotic pressure generation at 298 K:
(The cell wall is permeable to water and not to the solute molecules)
(A) If a cell containing 0.5 moles of solute dissolved in 1 L of water is immersed in pure water.
(B) If a cell containing 0.25 moles of solute dissolved in 1 L of water is immersed in pure water.
(C) If a cell containing 0.1 moles of solute dissolved in 0.01 L of water is immersed in pure water.
(D) If a cell containing 0.2 moles of solute dissolved in 0.05 L of water is immersed in pure water.
Choose the correct answer from the options given below:

Which among the following chemicals is used as a catalytic promoter in Haber’s process?

Which of the following compounds will be repelled when placed in an external magnetic field?

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

Match List-I with List-II:

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:

Which among the following is an essential amino acid?

What will be the increasing order of basic strength of the following compounds: \(\text{C}_2\text{H}_5\text{NH}_2, (\text{C}_2\text{H}_5)_2\text{NH},(\text{C}_2\text{H}_5)_3\text{N},\text{C}_6\text{H}_5\text{NH}_2\)

Which important compound is prepared by using cumene?

Match List-I with List-II:

List-I Compound		List-II Product in Basic Medium (in NaOH + Heat)
A	Ethanal	(I)	Benzoic acid + Phenyl methanol
B	Methanal	(II)	3-Hydroxybutanal + But-2-enal
C	Benzenecarbaldehyde	(III)	4-Hydroxy-4-methylpentan-2-one + 4-Methylpent-3-en-2-one
D	Acetone	(IV)	Formic acid + Methanol

Choose the correct answer from the options given below:

Aspirin is also known as:

The gold number range of some lyophilic colloids is given below: A: 0.005–0.01, B: 0.15–0.25, C: 0.04–1.0, D: 15–25

Inversion of cane sugar is a:

Match List-I with List-II:

A first-order reaction has a half-life of 693 sec. What will be its rate constant?