List of top Chemistry Questions asked in CUET (UG)

Monochlorination of toulene in sunlight followed by hydrolysis with aq NaOH yields.

Arrange the following three compounds in order of decreasing acidity.

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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. \([Cr(H_2O)_6]^{3+}\)
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Grignard reagent should be prepared under anhydrous condition because

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Allyl chloride on dehydrochlorination gives :

What will be the product of the following reaction:
C₆H₅ONa+ C₂H₅Cl → ?

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Which one of the following characteristics of the transition metals is associated with their catalytic property/activity ?

Identify the correct statement(s).
A. Fluorine is a stronger oxidising agent than chlorine.
B. Sulphur in vapour state shows paramagnetic behavior.
C. \(H_2S\) is more acidic than \(H_2Te\).
D. Fluorine form two oxoacids HOF, HOFO.
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What is basicity of \(H_3PO_4\)

Which of the following ionic species has the greatest proton affinity to form stable compound?

Which is best description of behavior of bromine in the reaction given below?
\(H_2O+ Br_2→ HBr +HOBr\)

The aqueous solution containing which one of the following ions will be colourless (Atomic number of Sc = 21, Fe = 26, Ti = 22, Mn = 25)

Zone refining is based on the principle that

Ore of copper is:

The strongest oxidising and reducing agents respectively are.

A solution of CuSO4 is electrolysed for 10 min with a current of 1.5 A. What is the mass of copper deposited at the cathode (molar mass of Cu= 63 g) (1F = 96487c).

A first order reaction is found to have a rate constant, \(k = 5.5 × 10^{-14} s^{-1}\). Find the half life of the reaction.

A graph is plotted between \(ln \space k\) and \(\frac{1}{T}\), what is the value of slope?

In the below given hypothetical equation
\(r = k[A]^x [B]^y\)
If the concentration of [B] is kept constant and concentration of [A] is increased to 3 times, the reaction rate increases 27 times, then the order of reaction with respect to A is:

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
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Atoms of element B form hcp lattice and those of the element A occupy \(\frac{2^{rd}}{3}\) of octahedral voids. What is the formula of the compound formed by the element A and B?

Which of the following is more reliable?