NTA JEE Main 9th April 2013 Online

Instructions

For the following questions answer them individually

NTA JEE Main 9th April 2013 Online - Question 41


Which one of the following is most stable?

NTA JEE Main 9th April 2013 Online - Question 42


Rate of dehydration of alcohols follows the order:

NTA JEE Main 9th April 2013 Online - Question 43


Which of the following compounds is not expected to show Lassaignes' test for nitrogen?

NTA JEE Main 9th April 2013 Online - Question 44


The addition of HI in the presence of peroxide catalyst does not follow anti-Markovnikov's rule because :

NTA JEE Main 9th April 2013 Online - Question 45


An element having an atomic radius of 0.14 nm crystallizes in an $$f_{cc}$$ unit cell. What is the length of a side of the cell?

NTA JEE Main 9th April 2013 Online - Question 46


12 g of a nonvolatile solute dissolved in 108 g of water produces the relative lowering of vapour pressure of 0.1. The molecular mass of the solute is :

NTA JEE Main 9th April 2013 Online - Question 47


Electrode potentials (E°) are given below :
$$Cu^+/Cu = +0.52$$ V,
$$Fe^{3+}/Fe^{2+} = +0.77$$ V,
$$\frac{1}{2}I_2(s)/I^- = +0.54$$ V,
$$Ag^+/Ag = +0.88$$ V.
Based on the above potentials, strongest oxidizing agent will be :

NTA JEE Main 9th April 2013 Online - Question 48


The instantaneous rate of disappearance of $$MnO_4^-$$ ion in the following reaction is $$4.56 \times 10^{-3}$$ Ms$$^{-1}$$
$$2MnO_4^- + 10I^- + 16H^+ \rightarrow 2Mn^{2+} + 5I_2 + 8H_2O$$
The rate of appearance of $$I_2$$ is :

NTA JEE Main 9th April 2013 Online - Question 49


The migration of dispersion medium under the influence of an electric potential is called :

NTA JEE Main 9th April 2013 Online - Question 50


Calcination is the process in which:

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