JEE Main 2017 (Offline)

The correct sequence of reagents for the following conversion will be :

The major product obtained in the following reaction is :

Which of the following molecules is least resonance stabilized?

Which of the following compounds will behave as a reducing sugar in an aqueous KOH solution?

Which of the following species is not paramagnetic?

Two reactions R1 and R2 have identical pre-exponential factors. Activation energy of R1 exceeds that of R2 by 10 kJ mol–1. If k1 and k2 are rate constants for reactions R1 and R2 respectively at 300 K, then ln(k2/k1) is equal to :
(R = 8...

Which of the following compounds will form significant amount of meta product during mono-nitration
reaction?

On treatment of 100 mL of 0.1 M solution of CoCl3. 6H2O with excess AgNO3; 1.2 \(\times\) 1022 ions are precipitated. The complex is :

In the following reactions, ZnO is respectively acting as a/an :
(a) ZnO + Na2O \(\to\) Na2ZnO2
(b) ZnO + CO2 \(\to\) ZnCO3

Given
\(E_{C{l_2}/C{l^ - }}^o\) = 1.36 V, \(E_{C{r^{3 + }}/Cr}^o\) = - 0.74 V
\(E_{C{r_2}{O_7}^{2 - }/C{r^{3 + }}}^o\) = 1.33 V, \(E_{Mn{O_4}^ - /Mn ^{2+}}^o\) = 1.51 V
Among the following, the strongest reducing agent is :

A water sample has ppm level concentration of following anions
F- = 10; \(SO_4^{2-}\) = 100; \(NO_3^-\) = 50
The anion/anions that make/makes the water sample unsuitable for drinking is/are :

Which of the following, upon treatment with tert-BuONa followed by addition of bromine water, fails to
decolorize the colour of bromine?

The major product obtained in the following reaction is :

3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number
of possible stereoisomers for the product is :

The increasing order of the reactivity of the following halides for the SN1 reaction is :

pKa of a weak acid (HA) and pKb of a weak base (BOH) are 3.2 and 3.4, respectively. The pH of their salt (AB) solution is :

The products obtained when chlorine gas reacts with cold and dilute aqueous NaOH are :

The formation of which of the following polymers involves hydrolysis reaction?

Sodium salt of an organic acid ‘X’ produces effervescence with conc. H2SO4. ‘X’ reacts with the acidified
aqueous CaCl2 solution to give a white precipitate which decolourises acidic solution of KMnO4. ‘X’ is :

Which of the following reactions is an example of a redox reaction?

Both lithium and magnesium display several similar properties due to the diagonal relationship; however,
the one which is incorrect, is :

A metal crystallises in a face centred cubic structure. If the edge length of its unit cell is ‘a’, the closest
approach between two atoms in metallic crystal will be :

The freezing point of benzene decreases by 0.450C when 0.2 g of acetic acid is added to 20g of benzene. If
acetic acid associates to form a dimer in benzene, percentage association of acetic acid in benzene will be:
(Kf for benzene = 5.12 K...

1 gram of a carbonate (M2CO3) on treatment with excess HCl produces 0.01186 mole of CO2. The molar mass of M2CO3 in g mol–1 is:

The most abundant elements by mass in the body of a healthy human adult are: Oxygen (61.4%); Carbon
(22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75 kg person would gain if all
1H atoms are replaced by 2H atoms is:

The group having isoelectronic species is:

The radius of the second Bohr orbit for hydrogen atom is:
(Planck’s Const. h = 6.6262 × 10-34 Js; mass of electron = 9.1091 × 10-31 kg; charge of electron (e) = 1.60210 × 10-19 C; permittivity of vacuum (\({\varepsilon _0}\)) = 8.854185 × 1...

The Tyndall effect is observed only when following conditions are satisfied:
(a) The diameter of the dispersed particles is much smaller than the wavelength of the light used.
(b) The diameter of the dispersed particle is not much smaller t...

Given, \({C_{(graphite)}} + {O_2} \to C{O_2}(g)\);
\({\Delta _r}{H^o}\) = - 393.5 kJ mol-1
\({{\rm H}_2}(g)\) + \({1 \over 2}{O_2}(g)\)\(\to {{\rm H}_2}{\rm O}(l)\)
\({\Delta _r}{H^o}\) = - 285.8 kJ mol-1
\(C{O_2}(g)\) + $$2{{\rm H}_2}{\rm ...

\(\Delta\)U is equal to :