List of top Chemistry Questions asked in CUET (UG)

Arrange the following Nucleophiles in the decreasing order of their attacking strength:
(A)
(B) CH₃CH₂CH₂COO^-
(C) CH₃CH₂CH₂CH₂S^-
(D) CH₃CH₂CH₂CH₂O^-
Choose the correct answer from the options given below :

The number of unpaired electron in gaseous ions Mn³⁺(Z=26), V³⁺ (Z=23), Cr³⁺ (Z=24) are respectively :

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

During bromination of phenol, lewis acid is not necessary required because of:

Decreasing order of reducing power of the given species as per their standard reduction potential is :
A. -2.36
B. +0.54
C. +1.23
D. -0.74
E. + 1.81
Choose the correct answer from the options given below:

In amines, the nitrogen atom is A and B hybridised, making geometry of amines as C. Then A, B, and C respectively are:

Hydroxylation of Trans But-2-ene results in the formation of-

\(C_2H_5OH\xrightarrow{X}C_2H_5Cl\xrightarrow{Y}C_2H_5CN\)
X and Y used in the above reaction are:

When 1.3-Diphenylprop-2-en-1-one is formed by the reaction of benzaldehyde and acetopheone in the presence of dil.NaOH followed by heating, which is the correct option ?

Arrange the following solids in the decreasing order of their magnetic strength in the presence of external magnetic field.
A. NaCl
B. CrO₂
C. MnO
D. Fe₃O₄

H-bond does not exist in:

Match List -I with List-II

	List -I		List-II
A	Kaolinite	I	FeCO3
B	Siderite	II	ZnCO3
C	Malachite	III	[AL2(OH)4Si2 O5]
D	Colamine	IV	CuCO3.Cu(OH)2)

Choose the correct answer from the option given below

The rate constants of a reaction at 200 K and 300 K are 0.02 s^-1 and 0.04 s^-1. Ea for this reaction will be:

Silicon doped with electron elements of group-13 forms.

$[NiCl_2(PPh_3)_2]$ is named as:

Aniline upon heating with conc. HNO₃ and concentrated H₂SO₄ mixture gives.

In Freundlich adsorption isotherm, the value of \( \frac{1}{n} \) is:

During electrolytic refining of copper, some metals settle as anode mud. These metals are :
A. Selenium and Tellurium
B. Silver and Gold
C. Gold and Platinum
D. Zinc and Platinum
E. Selenium, Gold and Platinum
Choose the correct answer from the options given below :

Graphite is a good conductor of electricity due to the presence of-

Scrubber technology used in automobile to remove mainly which harmful gas from the exhaust with the help of water spray or lime :

Acid Rain is caused due to _________.

The increasing order of magnetic behaviour for following complex is
A. \([Ti(H_2O)_6]^{3+}\)
B. \([V(H_2O)_6]^{3+}\)
C. \([MnCl_4]^{2-}\)
D. \([MnF_6]^{3-}\)
E. \([Cr(H_2O)_6]^{3+}\)
Choose the correct answer from the options given below:

The oxoacid of sulphur which has a lone pair of electrons on the sulphur atom is:

Coagulating power of an ion for a colloid solution depends on

Which of the following electrolytes will have maximum coagulating value for AgI/Ag$^+$ sol?