NEET 2022 Phase 2

Match the reagents (List-I) with the product (List-II) obtained from phenol.

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Which one of the following reaction sequence is incorrect method to prepare phenol?

Which of the following reactions is not an example for nucleophilic addition-elimination reaction?

The product formed from the following reaction sequence is

Match List-I with List-II :

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The incorrect method to synthesize benzaldehyde is

The incorrect statement about denaturation of proteins is :

Match List-I with List-II :

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The correct order of bond angles in the following compounds/species is :

Kp for the following reaction is 3.0 at 1000 K.
CO2(g) + C(s) \(\rightleftharpoons\) 2CO(g)
What will be the value of Kc for the reaction at the same temperature?
(Given : R = 0.083 L bar K\(-\)1 mol\(-\)1)

For a chemical reaction
4A + 3B \(\to\) 6C + 9D
Rate of formation of C is 6 \(\times\) 10\(-\)2 mol L\(-\)1 s\(-\)1 and rate of disappearance of A is 4 \(\times\) 10\(-\)2 mol L\(-\)1 s\(-\)1. The rate of reaction and amount of B consumed i...

Match List-I with List-II :

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Match List-I with List-II :

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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : The metal carbon bond in metal carbonyls possesses both \(\sigma\) and \(\pi\) character.
Reason (R) : The ligand to ...

Given below are two statements :
Statement I : Cr2+ is oxidising and Mn3+ is reducing in nature.
Statement II : Sc3+ compounds are repelled by the applied magnetic field.
In the light of the above statements, choose the most appropriate ans...

Two half cell reactions are given below.
\(C{o^{3 + }} + {e^ - } \to C{o^{2 + }},\,\,\,\,\,\,\,\,\,E_{C{o^{2 + }}/C{o^{3 + }}}^0 = - 1.81\,V\)
\(2A{l^{3 + }} + 6{e^ - } \to 2Al(s),\,\,\,E_{Al/A{l^{3 + }}}^0 = + 1.66\,V\)
The standard EMF ...

Standard electrode potential for the cell with cell reaction
Zn(s) + Cu2+(aq) \(\to\) Zn2+(aq) + Cu(s)
is 1.1 V. Calculate the standard Gibbs energy change for the cell reaction. (Given F = 96487 C mol\(-\)1)

Match List-I with List-II :

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Four gas cylinders containing He, N2, CO2 and NH3 gases separately are gradually cooled from a temperature of 500 K. Which gas will liquify first?
(Given Tc in K \(-\) He : 5.3, N2 : 126, CO2 : 304.1 and NH3 : 405.5)

The decreasing order of boiling points of the following alkanes is :
(a) heptane
(b) butane
(c) 2-methylbutane
(d) 2-methylpropane
(e) hexane
Choose the correct answer from the options given below :

The products A and B in the following reaction sequence are :

The incorrect method for the synthesis of alkenes is

0.01 M acetic acid solution is 1% ionised, then pH of this acetic acid solution is :

The half life of a first order reaction is 2000 years. If the concentration after 8000 years is 0.02 M, then the initial concentration was :

The product formed from the following reaction sequence is :

Match List-I with List-II :

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Which of the following reactions is a part of the large scale industrial preparation of nitric acid?

Na2B4O7 \(\buildrel {heat} \over \longrightarrow\) X + NaBO2
in the above reaction the product "X" is :

The correct order of first ionization enthalpy for the given four elements is :

Decrease in size from left to right in actinoid series is greater and gradual than that in lanthanoid series due to

Fluorine is a stronger oxidising agent than chlorine because :
(a) F-F bond has a low enthalpy of dissociation.
(b) Fluoride ion (F\(-\)) has high hydration enthalpy.
(c) Electron gain enthalpy of fluorine is less negative than chlorine.
(d...

If first ionization enthalpies of elements X and Y are 419 kJ mol\(-\)1 and 590 kJ mol\(-\)1, respectively and second ionization enthalpies of X and Y are 3069 kJ mol\(-\)1 and 1145 kJ mol\(-\)1, respectively. Then correct statement is :

Which among the following is a thermoplastic polymer?

Which of the following reactions is a decomposition redox reaction?

The element used for welding metals with high melting points is

CaCl2 and Ca(OCl)2 are components of

Which one of the following is not a calcination reaction?

Match List-I with List-II :

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KH value for some gases at the same temperature 'T' are given :

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The density of the solution is 2.15 g mL\(-\)1, then mass of 2.5 mL solution in correct significant figures is :

What fraction of Fe exists as Fe(III) in Fe0.96O ?
(Consider Fe0.96O to be made up of Fe(II) and Fe(III) only)

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Chlorine is an electron withdrawing group but it is ortho, para directing in electrophilic aromatic substitution.
Rea...

Predict the order of reactivity of the following four isomers towards SN2 reaction.
(I) CH3CH2CH2CH2Cl
(II) CH3CH2CH(Cl)CH3
(III) (CH3)2CHCH2Cl
(IV) (CH3)3CCl

What is the hybridization shown by C1 and C2 carbons, respectively in the given compound?
OHC \(-\) CH = CH \(-\) CH2COOCH3

Which of the following is the most stable carbocation?

Match List-I with List-II :

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When electromagnetic radiation of wavelength 300 nm falls on the surface of a metal, electrons are emitted with the kinetic energy of 1.68 \(\times\) 105 J mol\(-\)1. What is the minimum energy needed to remove an electron from the metal?
(...

Shown below are adsorption isotherms for a gas 'X' at temperatures T1, T2 and T3 :

p and \({x \over m}\) represent pressure and extent of adsorption, respectively. The correct order of temperatures for the given adsorption is :

One mole of an ideal gas at 300 K is expanded isothermally from 1 L to 10 L volume. \(\Delta\)U for this process is :
(Use R = 8.314 J k\(-\)1 mol\(-\)1)

A vessel contains 3.2 g of dioxygen gas at STP (273.15 K and 1 atm pressure). The gas is now transferred to another vessel at constant temperature, where pressure becomes one third of the original pressure. The volume of new vessel in L is ...