class 12

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JEE Main

Identify the reaction which does not liberatre hydrogen :

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The first ionization potential of Na is 5.1 eV. The value of electron gain enthalpy of Na+ will be:

Consider the following reaction: $xMnO_{4}+yC_{2}O_{4}+zH_{+}3/4 xMn_{2+}+2yCO_{2}+2z H_{2}O$ The values of x, y and z in the reaction are, respectively:

The number of values of k, for which the system of equations$(k+1)x+8y=4k$$kx+(k+3)y=3k−1$has no solution, is

Match the catalysts to the correct processes : $Catalyst(A) TiCl_{3}(B) PdCl_{2}(C) CuCl_{2}(D) V_{2}O_{5} Process(i)Wacker process(ii)Ziegler - Natta polymerization(iii)Contact process(iv)Deacon’s process $

Synthesis of each molecule of glucose in photosynthesis involves:

In which of the following reactions $H_{2}O_{2}$ acts as a reducing agent ?

For the non – stoichiometre reaction $2A+B→C+D$ , the following kinetic data were obtained in three separate experiments, all at 298 K The rate law for the formation of C is:

Let O be the vertex and Q be any point on the parabola,$x_{2}=8y$. It the point P divides the line segment OQ internally in the ratio 1 : 3, then the locus of P is :