NTA JEE Main 23rd April 2013 Online

Instructions

For the following questions answer them individually

NTA JEE Main 23rd April 2013 Online - Question 41


Equimolar solutions of the following compounds are prepared separately in water. Which will have the lowest pH value?

NTA JEE Main 23rd April 2013 Online - Question 42


Monocarboxylic acids are functional isomers of:

NTA JEE Main 23rd April 2013 Online - Question 43


In a face centred cubic lattice, atoms of A form the corner points and atoms of B form the face centred points. If two atoms of A are missing from the corner points, the formula of the ionic compound is :

NTA JEE Main 23rd April 2013 Online - Question 44


Vapour pressure of pure benzene is 119 torr and that of toluene is 37.0 torr at the same temperature. Mole fraction of toluene in vapour phase which is in equilibrium with a solution of benzene and toluene having a mole fraction of toluene 0.50, will be :

NTA JEE Main 23rd April 2013 Online - Question 45


Given :
$$E^\circ_{\frac{1}{2}Cl_2/Cl^-} = 1.36$$ V, $$E^\circ_{Cr^{3+}/Cr} = -0.74$$ V
$$E^\circ_{Cr_2O_7^{2-}/Cr^{3+}} = 1.33$$ V, $$E^\circ_{MnO_4^-/Mn^{2+}} = 1.51$$ V
The correct order of reducing power of the species (Cr, Cr$$^{3+}$$, Mn$$^{2+}$$ and Cl$$^-$$) will be:

NTA JEE Main 23rd April 2013 Online - Question 46


The rate constant of a zero order reaction is $$2.0 \times 10^{-2}$$ mol L$$^{-1}$$ s$$^{-1}$$. If the concentration of the reactant after 25 seconds is 0.5M. What is the initial concentration?

NTA JEE Main 23rd April 2013 Online - Question 47


Smoke is an example of:

NTA JEE Main 23rd April 2013 Online - Question 48


Which has trigonal bipyramidal shape?

NTA JEE Main 23rd April 2013 Online - Question 49


When a small amount of KMnO$$_4$$ is added to concentrated H$$_2$$SO$$_4$$, a green oily compound is obtained which is highly explosive in nature. Compound may be :

NTA JEE Main 23rd April 2013 Online - Question 50


Identify the incorrect statement :

banner

banner
cracku

Boost your Prep!

Download App