NEET 2022 Phase 1

Given below are two statements:
Statement I: The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing nitro group.
Statement II : o-nitrophenol, m-nitrophenol and p-nitrophenol will have same ...

Given below are two statements:
Statement I : In Lucas test, primary, secondary and tertiary alcohols are distinguished on the basis of their reactivity with conc. HCl + ZnCl2, known as Lucas Reagent.
Statement II : Primary alcohols are mos...

Given below are two statements :
Statement I : The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole - dipole int...

RMgX + CO2 \(\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{ether}^{dry}}\) Y \(\buildrel {{H_3}{O^ + }} \over \longrightarrow\) RCOOH
What is Y in the above reaction?

Match List-I with List-II.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}...

Compound X on reaction with O3 followed by Zn/H2O gives formaldehyde and 2-methyl propanal as products. The compound X is

Which one of the following is not formed when acetone reacts with 2-pentanone in the presence of dilute NaOH followed by heating?

The incorrect statement regarding enzymes is

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion (A) : ICI is more reactive than I2
Reason (R) : I-CI bond is weaker than I-I bond.
In the light of the above statements, cho...

Amongst the following which one will have maximum 'lone pair - lone pair' electron repulsions?

Which amongst the following is incorrect statement?

3O2(g) \(\rightleftharpoons\) 2O3(g)
for the above reaction at 298 K, Kc is found to be 3.0 \(\times\) 10\(-\)59. If the concentration of O2 at equilibrium is 0.040 M then concentration of O3 in M is

The given graph is a representation of kinetics of a reaction

The y and x axes for zero and first order reactions, respectively are

For a first order reaction A \(\to\) Products, initial concentration of A is 0.1 M, which becomes 0.001 M after 5 minutes. Rate constant for the reaction in min\(-\)1 is

Match List - I with List - II.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:norm...

The IUPAC name of the complex -
[Ag(H2O)2][Ag(CN)2] is:

The order of energy absorbed which is responsible for the color of complexes
(A) [Ni(H2O)2(en)2]2+
(B) [Ni(H2O)4(en)]2+ and
(C) [Ni(en)3]2+
is

At 298 K, the standard electrode potentials of Cu2+ / Cu, Zn2+ / Zn, Fe2+ / Fe and Ag+ / Ag are 0.34 V, \(-\)0.76 V, \(-\)0.44 V V and 0.80 V, respectively.
On the basis of standard electrode potential, predict which of the following reacti...

Given below are half cell reactions:
\(MnO_4^ - + 8{H^ + } + 5{e^ - } \to M{n^{2 + }} + 4{H_2}O\),
\(E_{M{n^{2 + }}/MnO_4^ - }^o = - 1.510\,V\)
\({1 \over 2}{O_2} + 2{H^ + } + 2{e^ - } \to {H_2}O\)
\(E_{{O_2}/{H_2}O}^o = + 1.223\,V\)
Wil...

Find the emf of the cell in which the following reaction takes place at 298 K
Ni(s) + 2Ag+ (0.001 M) \(\to\) Ni2+ (0.001 M) + 2Ag(s)
(Given that E\(_{cell}^o\) = 10.5 V, \({{2.303\,RT} \over F} = 0.059\) at 298 K)

Which one is not correct mathematical equation for Dalton's Law of partial pressure? Here p = total pressure of gaseous mixture
where pi = partial pressure of ith gas
\({\chi _i}\) = mole fraction of ith gas in gaseous mixture where $${\chi...

A 10.0 L flask contains 64 g of oxygen at 27\(^\circ\)C. (Assume O2 gas is behaving ideally). The pressure inside the flask in bar is (Given R = 0.0831 L bar K\(-\)1 mol\(-\)1)

The pollution due to oxides of sulphur gets enhanced due to the presence of:
(a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen peroxide
Choose the most appropriate answer from the options given below:

In the neutral or faintly alkaline medium, KMnO4 oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is form

The pH of the solution containing 50 mL each of 0.10 M sodium acetate and 0.01 M acetic acid is [Given pKa of CH3COOH = 4.57]

Which of the following sequence of reactions is suitable to synthesize chlorobenzene?

Given below are two statements
Statement I : Primary aliphatic amines react with HNO2 to give unstable diazonium salts.
Statement II : Primary aromatic amines react with HNO2 to form diazonium salts which are stable even above 300 K.
In the...

The product formed from the following reaction sequence is

Match List-I with List-II.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}...

Which of the following statement is not correct about diborane?

Given below are two statements
Statement I : The boiling points of the following hydrides of group 16 elements increases in the order -
H2O < H2S < H2Se < H2Te
Statement II : The boiling points of these hydrides increase with increase in mo...

The IUPAC name of an element with atomic number 119 is

Gadolinium has a low value of third ionisation enthalpy because of

Which statement regarding polymers is not correct?

Match List - I with List - II.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:norm...

Identify the incorrect statement from the following

Match List - I with List - II

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:norma...

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : In a particular point defect, an ionic solid is electrically neutral, even if few of its cations are missing from its...

Choose the correct statement:

Copper crystallises in fcc unit cell with cell edge length of 3.608 \(\times\) 10\(-\)8 cm. The density of copper is 8.92 g cm\(-\)3. Calculate the atomic mass of copper.

In one molal solution that contains 0.5 mole of a solute, there is

What mass of 95% pure CaCO3 will be required to neutralise 50 mL of 0.5 M HCl solution according to the following reaction?
CaCO3(s) + 2HCl(aq) \(\to\) CaCl2(aq) + Co2(g) + 2H2O(l)
[Calculate upto second place of decimal point]

Which compound amongst the following is not an aromatic compound?

The incorrect statement regarding chirality is

The Kjeldahl's method for the estimation of nitrogen can be used to estimate the amount of nitrogen in which one of the following compounds?

The correct IUPAC name of the following compound is

Identify the incorrect statement from the following.

If radius of second Bohr orbit of the He+ ion is 105.8 pm, what is the radius of third Bohr orbit of Li2+ ion?

Given below ae two statements
Statement I:
In the coagulation of a negative sol, the flocculating power of the three given ions is in the order Al3+ > Ba2+ > Na+
Statement II:
In the coagulation of a positive sol, the flocculating power of ...

Which of the following p-V curve represents maximum work done?