NTA JEE Main 12th April 2014 Online

Instructions

For the following questions answer them individually

NTA JEE Main 12th April 2014 Online - Question 41


The conjugate base of hydrazoic acid is:

NTA JEE Main 12th April 2014 Online - Question 42


Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In which of the following cases H$$_2$$O$$_2$$ acts as a reducing agent in acid medium?

NTA JEE Main 12th April 2014 Online - Question 43


Which one of the following acids does not exhibit optical isomerism?

NTA JEE Main 12th April 2014 Online - Question 44


 on mercuration-demercuration produces the major product:

NTA JEE Main 12th April 2014 Online - Question 45


In the presence of peroxide, HCl and HI do not give anti-Markownikoff's addition of alkenes because:

NTA JEE Main 12th April 2014 Online - Question 46


Global warming is due to increase of:

NTA JEE Main 12th April 2014 Online - Question 47


In a monoclinic unit cell, the relation of sides and angles are respectively:

NTA JEE Main 12th April 2014 Online - Question 48


How many electrons would be required to deposit 6.35 g of copper at the cathode during the electrolysis of an aqueous solution of copper sulphate? (Atomic mass of copper = 63.5u, N$$_A$$ = Avogadro's constant):

NTA JEE Main 12th April 2014 Online - Question 49


The rate coefficient (k) for a particular reactions is $$1.3 \times 10^{-4}$$ M$$^{-1}$$ s$$^{-1}$$ at 100°C, and $$1.3 \times 10^{-3}$$ M$$^{-1}$$ s$$^{-1}$$ at 150°C. What is the energy of activation (E$$_A$$) (in kJ) for this reaction? (R = molar gas constant = 8.314 JK$$^{-1}$$ mol$$^{-1}$$)

NTA JEE Main 12th April 2014 Online - Question 50


Which of the following xenon-oxo compounds may not be obtained by hydrolysis of xenon fluorides?

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