JEE Main 2019 (Online) 11th January Morning Slot

The major product of the following reaction is :

The major product of the following reaction is

The major product of the following reaction is :

The correct match between items I and II is :

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Among the following compounds, which one is found in RNA ?

Consider the reaction
N2(g) + 3H2(g) \(\rightleftharpoons\) 2NH3(g)
The equilibrium constant of the above reaction is Kp. If pure ammonia is left to dissociate, the partial pressure of ammonia at equilibrium is given by (Assume that PNH3 ...

If a reaction follows the Arrhenius equation, the plot ln k vs \({1 \over {\left( {RT} \right)}}\) gives straight line with a gradient (\(-\) y) unit.
The energy required to active the reactant is :

The correct match between item (I) and item (II) is :

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The major product of the following reaction is :

Match the metals (column I) with the coordination compound(s)/enzyme(s) (column II)

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The element that usually does NOT show variable oxidation states is :

For the cell Zn(s) |Zn2+ (aq)| |Mx+ (aq)| M(s), different half cells and their standard electrode potentials are given below :

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The concentration of dissolved oxygen (DO) in cold water can go upto :

Peroxyacetyl nitrate (PAN), an eye irritant is produced by :

Which compound (s) out of the following is/are not aromatic ?

NaH is an example of :

The correct statements among (a) to (d) regarding H2 as a fuel are :
(a)   It produces less pollutants than petrol.
(b)   A cylinder of compressed dihydrogen weighs \(\sim\) 30 times more than a petrol tank producing the same amount of en...

Match the ores (column A) with the metals (column B) :

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The chloride that CANNOT get hydrolysed is :

The correct order of the atomic radii of C, Cs, Al, and S is :

The polymer obtained from the following reaction is :

The amphoteric hydroxide is :

A solid having density of 9\(\times\)103 kg m–3 forms face centred cubic crystals of edge length \(200\sqrt 2\) pm. What is the molar mass of the solid?
[Avogadro constant \(\cong\) 6 \(\times\) 1023 mol–1
, \(\pi\) \(\cong\) 3]

The freezing point of a diluted milk sample is found to be –0.2oC, while it should have been –0.5oC for pure milk. How much water has been added to pure milk to make the diluted sample?

An organic compound is estimated through Duma's method and was found to evolve 6 moles of CO2. 4 moles of H2O and 1 mole of nitrogen gas. The formula of the compound is :

A 10 mg effervescent tablet containing sodium bicarbonate and oxalic acid releases 0.25 ml of CO2 at T = 298.15 K and p = 1 bar. If molar volume of CO2 is 25.0 L under such condition, what is the percentage of sodium bicarbonate in each tab...

Heat treatment of muscular pain involves radiation of wavelength of about 900 nm. Which spectral line of H atom is suitable for this purpose?
[RH = 1 \(\times\) 105 cm–1, h = 6.6 \(\times\) 10–34 Js, c = 3 \(\times\) 108 ms–1]

An example of solid sol is :

Two blocks of the same metal having same mass and at temperature T1 and T2, respectively, are brought in contact with each other and allowed to attain thermal equilibrium at constant pressure. The change in entropy, \(\Delta\)S, for this p...

For the chemical reaction X \(\rightleftharpoons\) Y, the standard reaction Gibbs energy depends on temperature T (in K) as
\(\Delta\)rGo (in kJ mol–1) = 120 \(- {3 \over 8}\) T.
The major component of the reaction mixture at T is :